First off I couldn't find a game feedback section that didn't revolve around bugs, so here's my suggestion that hopefully will get noticed. :)
At the moment the FC chest (bank) can have three permission rules:
1. Full - Can deposit AND withdraw freely
2. (Forgot the name given) - Basically just a view
3. None - Just as it suggests, nothing
What I suggest is to add another permission to allow viewing and deposits, but restrict withdrawing.