Anyone know the correct purpose of the .action property on controls?

I discovered that if say a form has 2 toggle buttons and they have the same action string set then toggling one toggled the other, they became linked.
also we get an action directory in the source folder with action files in a format i don't understand.

So there must be more to the action property than meets the eye?
Doesn't seem to be much info about it anywhere though.

Cheers

maybe:
https://gambas-buch.de…u.php?do=search&id=action

Have a look at the attached. Hopefully it will help.

…and if you want to translate from italian:
   
   La classe Action - Gambas-it.org - Wikipedia

Thanks folks
So it really is a linking feature for tying controls together.
Good to know, thank you all