Security filters for Views + On 'Done' Signature actions

Would love to see Views recieve security filters. In that situation one could just set the security filter of a specific view and redirect the user to a message stating they don’t have access, and an “Okay” button redirecting to Starting view set by the starting view constraints if applicable, or the previous view if none is set…

Another idea would be to assign actions on Signature save when the user selects “Done”. Similar to assigning actions on form save.

I found quite a few situations these features would really benefit.