lock settings

I have purchased tablets for my work crews and have spent numerous hours installing apps and setting them up the way i feel they will be most efficient. Is there an option to lock the apps in place so that they cant undo all of my work and time? I'd also like to limit their ability to download apps and software. Is there a way of blocking them other than setting up a restricted user?

Welcome.
I know 3rd party Launchers like Nova can "lock" the screens to deny changes.
The restricted user option is your best choice.

Mav. :cool: