"capture window" and "capture window from list" have 2 different results

Hello

I am using greenshot to help my mom learn to use her phone, since she is extremely sick with leukemia and needs some things to distract herself.

I am trying to take screenshots from windows of a phone remote control app

The windows I am trying to capture are bigger than the screen itself, and they overlap the desktop dimension.

If I take the screen with the "capture screen" button or shortcut, it only captures the visibile part of the window, like all the other screenshot apps.....
BUT
if I take the screen selecting the window from the "capture wundow from list" menu, the it works exactly as I need, an captures the full window, even the part out of the screen.....the problem is that there is no shortcut or this, and for some of the things I have to send mother, it takes forever to do