Hi Dylan, thanks a lot for your suggestions. Appreciated.
I know the vertical timeline is somewhat controversial – and I know most other software use a horizontal one. The reason it is vertical in Animation Paper is that is based on the traditional exposure sheet (X-Sheet). This has definite advantages.
I am not apposed to implementing a horizontal version of the X-sheet and make it the direction user optional. This is on our list of features for the future – but for now we have other functionality that must be prioritised, such as all the coloring features, etc.
The scroll wheel zooming is on our todolist for a release during this alpha stage. 🙂