Window crop

[BooDaBoonk]

I am new to OBS on Mac. On windows you could crop a window capture source by holding the ALT key while dragging the edges of the window. Is there a way to do this same thing on Mac OBS? Please help.

https://obsproject.com/logs/lydNcImZfBxk1KMN

 

[twindux]

Option key works for me.