make simulator window always on top

I wouldn't like this at all.  When I'm testing, I'll let things run in the sim for a period of time.  Just to get the move bar to display "naturally" takes 2 hours.  And during that time, I use the pc for a whole bunch of other things.

In other testing, say a device app while playing back a fit file, that could run an entire day,

If you're on windows, you can use PowerToys to make any window always on top.

For Mac, you can try AfloatX. I haven't tried it because you have to disable SIP, and I don't have access to a personal Mac where this is feasible.

well, even me don't like this ever. but i assure i have good use for it often.

moreover i can't see how an option would impact for you. 

Thanks! i am on windows. gonna look into that.

EDIT: Oh lord it works great! thank you!