[Feature-Request] Keybinding to toggle 'Find in selection'

[devonparsons]

After opening the 'find' dialog with ctrl + f, there are keybindings for every other button on the dialog except for 'Find in selection':

Match Case (Alt + C)
Match Whole Word (Alt + W)
Toggle regex (Alt + R)
Previous match (Shift + F3)
Next Match (F3)
Close (Escape)

I recommend adding an editor command "Toggle 'Find in selection'" with a default keybinding of Alt + S