Set loop by touching waveform like in Traktor DJ?

Hey guys, I am transitioning from Traktor DJ - and as much as DJay Pro on the iPad has most of the things I wanted in Traktor DJ I really miss being able to set loops on the fly by touching the waveform with two fingers. In Traktor DJ you can swipe to make the loop larger or shorter too, and easily zoom in and out of a waveform to fin the perfect spot to jump into a loop.

This way I could easily grab a section in the right size. Now I have to check what my loop setting is and then change it accordingly and then find the start of the loop - makes sense?

I always thought that was genius in Traktor DJ. Touch the waveform to manipulate it.

Thanks for any hint and workaround.