diff --git a/src/input/Binding.zig b/src/input/Binding.zig
index 0e2f929e5..6a66e1d6f 100644
--- a/src/input/Binding.zig
+++ b/src/input/Binding.zig
@@ -152,6 +152,9 @@ pub const Action = union(enum) {
     /// Clear the screen. This also clears all scrollback.
     clear_screen: void,
 
+    /// Select all text on the screen.
+    select_all: void,
+
     /// Scroll the screen varying amounts.
     scroll_to_top: void,
     scroll_to_bottom: void,
@@ -223,8 +226,6 @@ pub const Action = union(enum) {
     /// Quit ghostty
     quit: void,
 
-    select_all: void,
-
     pub const CursorKey = struct {
         normal: []const u8,
         application: []const u8,
diff --git a/src/terminal/Screen.zig b/src/terminal/Screen.zig
index 970f1b177..c441c14fb 100644
--- a/src/terminal/Screen.zig
+++ b/src/terminal/Screen.zig
@@ -1392,6 +1392,8 @@ pub fn clear(self: *Screen, mode: ClearMode) !void {
     }
 }
 
+/// Return the selection for all contents on the screen. Surrounding
+/// whitespace is omitted. If there is no selection, this returns null.
 pub fn selectAll(self: *Screen) ?Selection {
     const whitespace = &[_]u32{ 0, ' ', '\t' };
     const y_max = self.rowsWritten() - 1;