Mod-Request: Toggle button for colonists to not leave home zone area

[MrWashingToad]

Actually heard it from YouTuber Quill18 on one of his A9 playthru's, and thought, you know, that would be REALLY useful.

Basically want a button we could press to keep the colonists from leaving the home zone, any away would move to the home zone with haste.
- would be used to keep colonists from running to their doom when we know raiders or something else is about to attack instead of going right out to line of sight of enemy to haul something.