Anchor Point in Principle App

One of the things that frustrate me in Principle App was the absence of anchor points. Anchor points are like the 'basic' stuff in most animation tools but not in Principle!

However, I've found out that there is a way to work around it. Download the principle file for your own reference.

(I discovered this hidden technique via a Medium blog post written by another good person, if you are reading this, thanks to you!)