[Plugin: WP-Members] Need help to activate mail confirmations when Edit Profile

Hello, I am using WP-Members plugin and found it extremely relevant to my site. However, for 1 particular requirement, I am in need of help.

I want to add new Checkbox field to the registration and Edit profile forms.
If the user changes the selection for that field, I need to initiate email confirmation to users, if the user edits his / her profile.

Can someone please help how i may do that?

Thank you very much in advance!