I use Fresco on Ipad. I want to navigate into my drawing (rotate, move) without changing the zoom size. Using the 2 fingers (rotate and move) is nearly impossible without also changing the zoom. I work with large scale project and vectors. I want to print it a the end and it's hard to tell the scale as the zoom changes with every move/rotation. It's hard to explain, I hope someone will understand and hopefully help.
Thanks