Add a program to trust

Hi all!

I have no idea if this is the correct place to ask this, so please accept my apologies in advance if it’s not.

I would like to know how I can manually add a program to the “trusted” list so that I don’t have to allow it every time? The program I wish to add has been created by a friend and so doesn’t have a digital signature but I use it often and it’s getting very annoying having to allow it each time.

Any help would be greatly appreciated.

You can add the executable(s) to My Own Safe Files. That’s all.