I have been playing with various Triggesr to try to do this but think they is another way..perhaps with a Function?

If any Skype window is open on Monitor 1, set the size.
If any Skype window is moved to Mon 2 set the size and position on Mon2.
If they are resized, keep the resize.
When a resized skype window is closed, apply the same rule as a new Skype window.

Trying now..
Window Focused, Always, C:\Program Files (x86)\Microsoft\Skype for Desktop\Skype.exe
Move windows to Specific Size and Location.

How can I make the rule to make Skpe stick to a position on Monitor 2..?

thank you!