diff --git a/src/backend/common.rs b/src/backend/common.rs
index 2b56684..934f1e0 100644
--- a/src/backend/common.rs
+++ b/src/backend/common.rs
@@ -15,8 +15,9 @@ use thiserror::Error;
 use wlx_capture::wayland::{OutputChangeEvent, WlxClient};
 
 use crate::{
+    config::{AStrMapExt, AStrSetExt},
     overlays::{
-        keyboard::create_keyboard,
+        keyboard::{create_keyboard, KEYBOARD_NAME},
         screen::{create_screen_interaction, create_screen_renderer_wl, load_pw_token_config},
         watch::{create_watch, create_watch_canvas, WATCH_NAME},
     },
@@ -66,15 +67,21 @@ where
         let mut show_screens = app.session.config.show_screens.clone();
         if show_screens.is_empty() {
             if let Some((_, s, _)) = data.screens.first() {
-                show_screens.push(s.name.clone());
+                show_screens.arc_ins(s.name.clone());
             }
         }
 
         for (meta, mut state, backend) in data.screens {
-            if show_screens.contains(&state.name) {
+            if show_screens.arc_get(state.name.as_ref()) {
                 state.show_hide = true;
                 state.want_visible = false;
             }
+            state.curvature = app
+                .session
+                .config
+                .curve_values
+                .arc_get(state.name.as_ref())
+                .copied();
             overlays.insert(
                 state.id,
                 OverlayData::<T> {
@@ -93,6 +100,12 @@ where
         let mut keyboard = create_keyboard(app)?;
         keyboard.state.show_hide = true;
         keyboard.state.want_visible = false;
+        keyboard.state.curvature = app
+            .session
+            .config
+            .curve_values
+            .arc_get(KEYBOARD_NAME)
+            .copied();
         overlays.insert(keyboard.state.id, keyboard);
 
         Ok(Self { overlays, wl })
@@ -283,7 +296,10 @@ where
         self.overlays.values_mut().for_each(|o| {
             if o.state.show_hide {
                 o.state.want_visible = !any_shown;
-                if o.state.want_visible && app.session.config.realign_on_showhide && o.state.recenter {
+                if o.state.want_visible
+                    && app.session.config.realign_on_showhide
+                    && o.state.recenter
+                {
                     o.state.reset(app, false);
                 }
             }
diff --git a/src/backend/input.rs b/src/backend/input.rs
index dd2ed04..a5d8a5a 100644
--- a/src/backend/input.rs
+++ b/src/backend/input.rs
@@ -6,7 +6,7 @@ use glam::{Affine3A, Vec2, Vec3A};
 use ovr_overlay::TrackedDeviceIndex;
 use smallvec::{smallvec, SmallVec};
 
-use crate::config::GeneralConfig;
+use crate::config::{save_state, AStrMapExt, GeneralConfig};
 use crate::state::AppState;
 
 use super::{
@@ -246,6 +246,7 @@ struct RayHit {
 pub struct GrabData {
     pub offset: Vec3A,
     pub grabbed_id: usize,
+    pub old_curvature: Option<f32>,
 }
 
 #[repr(u8)]
@@ -288,7 +289,7 @@ where
     let mut pointer = &mut app.input_state.pointers[idx];
     if let Some(grab_data) = pointer.interaction.grabbed {
         if let Some(grabbed) = overlays.mut_by_id(grab_data.grabbed_id) {
-            pointer.handle_grabbed(grabbed, hmd, &app.session.config);
+            pointer.handle_grabbed(grabbed, hmd, &mut app.session.config);
         } else {
             log::warn!("Grabbed overlay {} does not exist", grab_data.grabbed_id);
             pointer.interaction.grabbed = None;
@@ -469,12 +470,17 @@ impl Pointer {
         self.interaction.grabbed = Some(GrabData {
             offset,
             grabbed_id: overlay.state.id,
+            old_curvature: overlay.state.curvature,
         });
         log::info!("Hand {}: grabbed {}", self.idx, overlay.state.name);
     }
 
-    fn handle_grabbed<O>(&mut self, overlay: &mut OverlayData<O>, hmd: &Affine3A, config: &GeneralConfig)
-    where
+    fn handle_grabbed<O>(
+        &mut self,
+        overlay: &mut OverlayData<O>,
+        hmd: &Affine3A,
+        config: &mut GeneralConfig,
+    ) where
         O: Default,
     {
         if self.now.grab {
@@ -509,6 +515,26 @@ impl Pointer {
                 hmd.inverse()
                     .transform_point3a(overlay.state.transform.translation),
             );
+
+            if let Some(grab_data) = self.interaction.grabbed.as_ref() {
+                let mut state_dirty = false;
+                if overlay.state.curvature != grab_data.old_curvature {
+                    if let Some(val) = overlay.state.curvature {
+                        config.curve_values.arc_ins(overlay.state.name.clone(), val);
+                    } else {
+                        let ref_name = overlay.state.name.as_ref();
+                        config.curve_values.arc_rm(ref_name);
+                    }
+                    state_dirty = true;
+                }
+                if state_dirty {
+                    match save_state(config) {
+                        Ok(_) => log::debug!("Saved state"),
+                        Err(e) => log::error!("Failed to save state: {:?}", e),
+                    }
+                }
+            }
+
             self.interaction.grabbed = None;
             log::info!("Hand {}: dropped {}", self.idx, overlay.state.name);
         }
diff --git a/src/config.rs b/src/config.rs
index 104af2c..2116da7 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,3 +1,4 @@
+use std::path::PathBuf;
 use std::sync::Arc;
 
 use crate::config_io;
@@ -15,6 +16,68 @@ use log::error;
 use serde::Deserialize;
 use serde::Serialize;
 
+pub type AStrMap<V> = Vec<(Arc<str>, V)>;
+
+pub trait AStrMapExt<V> {
+    fn arc_ins(&mut self, key: Arc<str>, value: V) -> bool;
+    fn arc_get(&self, key: &str) -> Option<&V>;
+    fn arc_rm(&mut self, key: &str) -> Option<V>;
+}
+
+impl<V> AStrMapExt<V> for AStrMap<V> {
+    fn arc_ins(&mut self, key: Arc<str>, value: V) -> bool {
+        if self.iter().any(|(k, _)| k.as_ref().eq(key.as_ref())) {
+            return false;
+        }
+        self.push((key, value));
+        true
+    }
+
+    fn arc_get(&self, key: &str) -> Option<&V> {
+        self.iter()
+            .find_map(|(k, v)| if k.as_ref().eq(key) { Some(v) } else { None })
+    }
+
+    fn arc_rm(&mut self, key: &str) -> Option<V> {
+        let index = self.iter().position(|(k, _)| k.as_ref().eq(key));
+        index.map(|i| self.remove(i).1)
+    }
+}
+
+pub type AStrSet = Vec<Arc<str>>;
+
+pub trait AStrSetExt {
+    fn arc_ins(&mut self, value: Arc<str>) -> bool;
+    fn arc_get(&self, value: &str) -> bool;
+    fn arc_rm(&mut self, value: &str) -> bool;
+}
+
+impl AStrSetExt for AStrSet {
+    fn arc_ins(&mut self, value: Arc<str>) -> bool {
+        if self.iter().any(|v| v.as_ref().eq(value.as_ref())) {
+            return false;
+        }
+        self.push(value);
+        true
+    }
+
+    fn arc_get(&self, value: &str) -> bool {
+        self.iter().any(|v| v.as_ref().eq(value))
+    }
+
+    fn arc_rm(&mut self, value: &str) -> bool {
+        let index = self.iter().position(|v| v.as_ref().eq(value));
+        index
+            .map(|i| {
+                self.remove(i);
+                true
+            })
+            .unwrap_or(false)
+    }
+}
+
+pub type PwTokenMap = AStrMap<String>;
+
 pub fn def_watch_pos() -> [f32; 3] {
     [-0.03, -0.01, 0.125]
 }
@@ -27,8 +90,8 @@ pub fn def_left() -> LeftRight {
     LeftRight::Left
 }
 
-pub fn def_pw_tokens() -> Vec<(String, String)> {
-    Vec::new()
+pub fn def_pw_tokens() -> PwTokenMap {
+    AStrMap::new()
 }
 
 fn def_click_freeze_time_ms() -> u32 {
@@ -59,8 +122,12 @@ fn def_osc_port() -> u16 {
     9000
 }
 
-fn def_screens() -> Vec<Arc<str>> {
-    vec![]
+fn def_screens() -> AStrSet {
+    AStrSet::new()
+}
+
+fn def_curve_values() -> AStrMap<f32> {
+    AStrMap::new()
 }
 
 fn def_auto() -> Arc<str> {
@@ -113,7 +180,7 @@ pub struct GeneralConfig {
     pub long_press_duration: f32,
 
     #[serde(default = "def_pw_tokens")]
-    pub pw_tokens: Vec<(String, String)>,
+    pub pw_tokens: PwTokenMap,
 
     #[serde(default = "def_osc_port")]
     pub osc_out_port: u16,
@@ -125,7 +192,10 @@ pub struct GeneralConfig {
     pub double_cursor_fix: bool,
 
     #[serde(default = "def_screens")]
-    pub show_screens: Vec<Arc<str>>,
+    pub show_screens: AStrSet,
+
+    #[serde(default = "def_curve_values")]
+    pub curve_values: AStrMap<f32>,
 
     #[serde(default = "def_auto")]
     pub capture_method: Arc<str>,
@@ -270,3 +340,67 @@ pub fn load_general() -> GeneralConfig {
         }
     };
 }
+
+// Config that is saved from the settings panel
+
+#[derive(Serialize)]
+pub struct AutoSettings {
+    pub watch_pos: [f32; 3],
+    pub watch_rot: [f32; 4],
+    pub watch_hand: LeftRight,
+    pub watch_view_angle_min: f32,
+    pub watch_view_angle_max: f32,
+    pub notifications_enabled: bool,
+    pub notifications_sound_enabled: bool,
+    pub realign_on_showhide: bool,
+    pub allow_sliding: bool,
+}
+
+fn get_settings_path() -> PathBuf {
+    let mut path = config_io::get_conf_d_path();
+    path.push("zz-saved-config.json5");
+    path
+}
+pub fn save_settings(config: &GeneralConfig) -> anyhow::Result<()> {
+    let conf = AutoSettings {
+        watch_pos: config.watch_pos,
+        watch_rot: config.watch_rot,
+        watch_hand: config.watch_hand,
+        watch_view_angle_min: config.watch_view_angle_min,
+        watch_view_angle_max: config.watch_view_angle_max,
+        notifications_enabled: config.notifications_enabled,
+        notifications_sound_enabled: config.notifications_sound_enabled,
+        realign_on_showhide: config.realign_on_showhide,
+        allow_sliding: config.allow_sliding,
+    };
+
+    let json = serde_json::to_string_pretty(&conf).unwrap(); // want panic
+    std::fs::write(get_settings_path(), json)?;
+
+    Ok(())
+}
+
+// Config that is saved after manipulating overlays
+
+#[derive(Serialize)]
+pub struct AutoState {
+    pub show_screens: AStrSet,
+    pub curve_values: AStrMap<f32>,
+}
+
+fn get_state_path() -> PathBuf {
+    let mut path = config_io::get_conf_d_path();
+    path.push("zz-saved-state.json5");
+    path
+}
+pub fn save_state(config: &GeneralConfig) -> anyhow::Result<()> {
+    let conf = AutoState {
+        show_screens: config.show_screens.clone(),
+        curve_values: config.curve_values.clone(),
+    };
+
+    let json = serde_json::to_string_pretty(&conf).unwrap(); // want panic
+    std::fs::write(get_state_path(), json)?;
+
+    Ok(())
+}
diff --git a/src/gui/modular/button.rs b/src/gui/modular/button.rs
index 5a0ceed..31c0d42 100644
--- a/src/gui/modular/button.rs
+++ b/src/gui/modular/button.rs
@@ -1,14 +1,13 @@
 use std::{
     f32::consts::PI,
     ops::Add,
-    path::PathBuf,
     process::{self, Child},
     sync::Arc,
     time::{Duration, Instant},
 };
 
 use glam::{Quat, Vec3A, Vec4};
-use serde::{Deserialize, Serialize};
+use serde::Deserialize;
 
 use crate::{
     backend::{
@@ -16,13 +15,12 @@ use crate::{
         input::PointerMode,
         overlay::RelativeTo,
     },
-    config::{def_half, def_left, def_point7, def_true, def_watch_pos, def_watch_rot},
-    config_io,
+    config::{save_settings, save_state, AStrSetExt},
     overlays::{
         toast::{Toast, ToastTopic},
         watch::WATCH_NAME,
     },
-    state::{AppState, LeftRight},
+    state::AppState,
 };
 
 use super::{ExecArgs, ModularControl, ModularData};
@@ -44,6 +42,7 @@ pub enum Axis {
 
 #[derive(Deserialize, Clone)]
 pub enum HighlightTest {
+    AllowSliding,
     AutoRealign,
     NotificationSounds,
     Notifications,
@@ -51,6 +50,7 @@ pub enum HighlightTest {
 
 #[derive(Deserialize, Clone)]
 pub enum SystemAction {
+    ToggleAllowSliding,
     ToggleAutoRealign,
     ToggleNotificationSounds,
     ToggleNotifications,
@@ -289,6 +289,7 @@ fn modular_button_highlight(
 
     if let Some(test) = &data.highlight {
         let lit = match test {
+            HighlightTest::AllowSliding => app.session.config.allow_sliding,
             HighlightTest::AutoRealign => app.session.config.realign_on_showhide,
             HighlightTest::NotificationSounds => app.session.config.notifications_sound_enabled,
             HighlightTest::Notifications => app.session.config.notifications_enabled,
@@ -330,19 +331,30 @@ fn handle_action(action: &ButtonAction, press: &mut PressData, app: &mut AppStat
     }
 }
 
+const ENABLED_DISABLED: [&str; 2] = ["enabled", "disabled"];
+
 fn run_system(action: &SystemAction, app: &mut AppState) {
     match action {
+        SystemAction::ToggleAllowSliding => {
+            app.session.config.allow_sliding = !app.session.config.allow_sliding;
+            Toast::new(
+                ToastTopic::System,
+                format!(
+                    "Sliding is {}.",
+                    ENABLED_DISABLED[app.session.config.allow_sliding as usize]
+                )
+                .into(),
+                "".into(),
+            )
+            .submit(app);
+        }
         SystemAction::ToggleAutoRealign => {
             app.session.config.realign_on_showhide = !app.session.config.realign_on_showhide;
             Toast::new(
                 ToastTopic::System,
                 format!(
                     "Auto realign is {}.",
-                    if app.session.config.realign_on_showhide {
-                        "enabled"
-                    } else {
-                        "disabled"
-                    }
+                    ENABLED_DISABLED[app.session.config.realign_on_showhide as usize]
                 )
                 .into(),
                 "".into(),
@@ -379,11 +391,7 @@ fn run_system(action: &SystemAction, app: &mut AppState) {
                 ToastTopic::System,
                 format!(
                     "Notifications are {}.",
-                    if app.session.config.notifications_enabled {
-                        "enabled"
-                    } else {
-                        "disabled"
-                    }
+                    ENABLED_DISABLED[app.session.config.notifications_enabled as usize]
                 )
                 .into(),
                 "".into(),
@@ -397,11 +405,7 @@ fn run_system(action: &SystemAction, app: &mut AppState) {
                 ToastTopic::System,
                 format!(
                     "Notification sounds are {}.",
-                    if app.session.config.notifications_sound_enabled {
-                        "enabled"
-                    } else {
-                        "disabled"
-                    }
+                    ENABLED_DISABLED[app.session.config.notifications_sound_enabled as usize]
                 )
                 .into(),
                 "".into(),
@@ -409,7 +413,7 @@ fn run_system(action: &SystemAction, app: &mut AppState) {
             .submit(app);
         }
         SystemAction::PersistConfig => {
-            if let Err(e) = save_settings(app) {
+            if let Err(e) = save_settings(&app.session.config) {
                 log::error!("Failed to save config: {:?}", e);
             }
         }
@@ -585,6 +589,20 @@ fn run_overlay(overlay: &OverlaySelector, action: &OverlayAction, app: &mut AppS
                         o.show_hide = o.want_visible;
                         o.reset(app, false);
                     }
+
+                    let mut state_dirty = false;
+                    if !o.want_visible {
+                        state_dirty |= app.session.config.show_screens.arc_rm(o.name.as_ref());
+                    } else if o.want_visible {
+                        state_dirty |= app.session.config.show_screens.arc_ins(o.name.clone());
+                    }
+
+                    if state_dirty {
+                        match save_state(&app.session.config) {
+                            Ok(_) => log::debug!("Saved state"),
+                            Err(e) => log::error!("Failed to save state: {:?}", e),
+                        }
+                    }
                 }),
             ));
         }
@@ -698,53 +716,3 @@ const THUMP_AUDIO_WAV: &[u8] = include_bytes!("../../res/380885.wav");
 fn audio_thump(app: &mut AppState) {
     app.audio.play(THUMP_AUDIO_WAV);
 }
-
-#[derive(Deserialize, Serialize)]
-pub struct AutoSettings {
-    #[serde(default = "def_watch_pos")]
-    pub watch_pos: [f32; 3],
-
-    #[serde(default = "def_watch_rot")]
-    pub watch_rot: [f32; 4],
-
-    #[serde(default = "def_left")]
-    pub watch_hand: LeftRight,
-
-    #[serde(default = "def_half")]
-    pub watch_view_angle_min: f32,
-
-    #[serde(default = "def_point7")]
-    pub watch_view_angle_max: f32,
-
-    #[serde(default = "def_true")]
-    pub notifications_enabled: bool,
-
-    #[serde(default = "def_true")]
-    pub notifications_sound_enabled: bool,
-
-    #[serde(default = "def_true")]
-    pub realign_on_showhide: bool,
-}
-
-fn get_config_path() -> PathBuf {
-    let mut path = config_io::get_conf_d_path();
-    path.push("zz-saved-config.json5");
-    path
-}
-pub fn save_settings(app: &mut AppState) -> anyhow::Result<()> {
-    let conf = AutoSettings {
-        watch_pos: app.session.config.watch_pos,
-        watch_rot: app.session.config.watch_rot,
-        watch_hand: app.session.config.watch_hand,
-        watch_view_angle_min: app.session.config.watch_view_angle_min,
-        watch_view_angle_max: app.session.config.watch_view_angle_max,
-        notifications_enabled: app.session.config.notifications_enabled,
-        notifications_sound_enabled: app.session.config.notifications_sound_enabled,
-        realign_on_showhide: app.session.config.realign_on_showhide,
-    };
-
-    let json = serde_json::to_string_pretty(&conf).unwrap(); // want panic
-    std::fs::write(get_config_path(), json)?;
-
-    Ok(())
-}
diff --git a/src/overlays/screen.rs b/src/overlays/screen.rs
index 4e0933b..fea1d40 100644
--- a/src/overlays/screen.rs
+++ b/src/overlays/screen.rs
@@ -23,7 +23,7 @@ use wlx_capture::{
 use {
     crate::config_io,
     glam::Vec3,
-    std::{collections::HashMap, error::Error, f32::consts::PI, ops::Deref, path::PathBuf},
+    std::{error::Error, f32::consts::PI, ops::Deref, path::PathBuf},
     wlx_capture::{
         pipewire::{pipewire_select_screen, PipewireCapture},
         wayland::{wayland_client::protocol::wl_output, WlxClient, WlxOutput},
@@ -42,7 +42,7 @@ use crate::{
         input::{Haptics, InteractionHandler, PointerHit, PointerMode},
         overlay::{OverlayRenderer, OverlayState, SplitOverlayBackend},
     },
-    config::def_pw_tokens,
+    config::{def_pw_tokens, AStrMapExt, PwTokenMap},
     graphics::{fourcc_to_vk, WlxCommandBuffer, WlxPipeline, WlxPipelineLegacy},
     hid::{MOUSE_LEFT, MOUSE_MIDDLE, MOUSE_RIGHT},
     state::{AppSession, AppState, ScreenMeta},
@@ -505,7 +505,7 @@ pub fn create_screen_renderer_wl(
     output: &WlxOutput,
     has_wlr_dmabuf: bool,
     has_wlr_screencopy: bool,
-    pw_token_store: &mut HashMap<String, String>,
+    pw_token_store: &mut PwTokenMap,
     session: &AppSession,
 ) -> Option<ScreenRenderer> {
     let mut capture: Option<ScreenRenderer> = None;
@@ -527,7 +527,7 @@ pub fn create_screen_renderer_wl(
         let display_name = output.name.deref();
 
         // Find existing token by display
-        let token = pw_token_store.get(display_name).map(|s| s.as_str());
+        let token = pw_token_store.arc_get(display_name).map(|s| s.as_str());
 
         if let Some(t) = token {
             log::info!(
@@ -542,10 +542,7 @@ pub fn create_screen_renderer_wl(
                 capture = Some(renderer);
 
                 if let Some(token) = restore_token {
-                    if pw_token_store
-                        .insert(String::from(display_name), token.clone())
-                        .is_none()
-                    {
+                    if pw_token_store.arc_ins(display_name.into(), token.clone()) {
                         log::info!("Adding Pipewire token {}", token);
                     }
                 }
@@ -607,11 +604,6 @@ fn create_screen_state(
 
     OverlayState {
         name: name.clone(),
-        show_hide: session
-            .config
-            .show_screens
-            .iter()
-            .any(|s| s.as_ref() == name.as_ref()),
         grabbable: true,
         recenter: true,
         interactable: true,
@@ -626,7 +618,7 @@ fn create_screen_state(
 #[derive(Deserialize, Serialize, Default)]
 pub struct TokenConf {
     #[serde(default = "def_pw_tokens")]
-    pub pw_tokens: Vec<(String, String)>,
+    pub pw_tokens: PwTokenMap,
 }
 
 #[cfg(feature = "wayland")]
@@ -637,31 +629,18 @@ fn get_pw_token_path() -> PathBuf {
 }
 
 #[cfg(feature = "wayland")]
-pub fn save_pw_token_config(tokens: &HashMap<String, String>) -> Result<(), Box<dyn Error>> {
-    let mut conf = TokenConf::default();
-
-    for (name, token) in tokens {
-        conf.pw_tokens.push((name.clone(), token.clone()));
-    }
-
-    let yaml = serde_yaml::to_string(&conf)?;
+pub fn save_pw_token_config(tokens: &PwTokenMap) -> Result<(), Box<dyn Error>> {
+    let yaml = serde_yaml::to_string(tokens)?;
     std::fs::write(get_pw_token_path(), yaml)?;
 
     Ok(())
 }
 
 #[cfg(feature = "wayland")]
-pub fn load_pw_token_config() -> Result<HashMap<String, String>, Box<dyn Error>> {
-    let mut map: HashMap<String, String> = HashMap::new();
-
+pub fn load_pw_token_config() -> Result<PwTokenMap, Box<dyn Error>> {
     let yaml = std::fs::read_to_string(get_pw_token_path())?;
     let conf: TokenConf = serde_yaml::from_str(yaml.as_str())?;
-
-    for (name, token) in conf.pw_tokens {
-        map.insert(name, token);
-    }
-
-    Ok(map)
+    Ok(conf.pw_tokens)
 }
 
 pub(crate) struct ScreenCreateData {
@@ -681,13 +660,15 @@ pub fn create_screens_wayland(
     wl: &mut WlxClient,
     app: &mut AppState,
 ) -> anyhow::Result<ScreenCreateData> {
+    use crate::config::AStrMap;
+
     let mut screens = vec![];
 
     // Load existing Pipewire tokens from file
-    let mut pw_tokens: HashMap<String, String> = if let Ok(conf) = load_pw_token_config() {
+    let mut pw_tokens: PwTokenMap = if let Ok(conf) = load_pw_token_config() {
         conf
     } else {
-        HashMap::new()
+        AStrMap::new()
     };
 
     let pw_tokens_copy = pw_tokens.clone();
diff --git a/src/res/settings.yaml b/src/res/settings.yaml
index c38a7ed..39f1839 100644
--- a/src/res/settings.yaml
+++ b/src/res/settings.yaml
@@ -565,6 +565,17 @@ elements:
         action: ToggleAutoRealign
     highlight: AutoRealign
 
+  - type: Button
+    rect: [30, 555, 220, 30]
+    font_size: 12
+    fg_color: "#ffffff"
+    bg_color: "#401010"
+    text: "Grab+Scroll Slide"
+    click_down:
+      - type: System
+        action: ToggleAllowSliding
+    highlight: AllowSliding
+
   ####### Footer Section #######
 
   - type: Panel