Before adopting the BBT, the tough bar will show several options, such as clipboard, desktop etc, once I tap command+shift+4. I think it's quite useful based on my personal need. However, how can I modify after adopting the BBT and Golden-Chaso presetting?
I'll appreciate any help in this forum.
GC has this stuff built-in! Hold down Control and you'll see screen capture tools in the control strip:
The two screenshot buttons are next to the AirPlay Mirror button on the left! They are shortcuts for full screenshot and window screenshot (what you're looking for) respectively 
As far as I know, there isn't a way to temporarily disable BTT only while capturing a screenshot, so if the controls I mentioned aren't enough let me know what sort of functionality you'd like to have and I can try too build it into a future version!
