Feat: lots of things, preparing for live gig

src/commands.rs

@@ -5,6 +5,10 @@ use crate::page::Page;
 use crate::state::{ColorScheme, DeviceKind, EngineSection, Modal, OptionsFocus, PatternField, SettingKind};
 
 pub enum AppCommand {
+    // Undo/Redo
+    Undo,
+    Redo,
+
     // Playback
     TogglePlaying,
     TempoUp,
@@ -89,6 +93,10 @@ pub enum AppCommand {
         banks: Vec<usize>,
     },
 
+    // Reorder
+    ShiftPatternsUp,
+    ShiftPatternsDown,
+
     // Clipboard
     HardenSteps,
     CopySteps,
@@ -239,6 +247,7 @@ pub enum AppCommand {
     ToggleRefreshRate,
     ToggleScope,
     ToggleSpectrum,
+    TogglePreview,
 
     // Metrics
     ResetPeakVoices,