The pen/writing function needs improvement

On my iPad I love the zoom box feature. I was upset when i noticed this didnt have that. Also, it is very hard to write and hold down the trackpad at the same time. A zoom box feature should be added, and you should be able to write without having to hold down the trackpad. Maybe this could be done by double clicking to start the writing and double click to stop.

Mclrt about Notability, v2.2.0