Toolbar customization like we can but the toolbar at the left or right and be small like just a pen and Highlighter.
second, i want to choose a color for like 10 colors and i cant but it to gather like a easy way. wath the photo.

If the phone is in landscape mode, there will be more space on the left than I can't benefit from. A way must be put in place to make the pen and Highlighter out at the far left. wath the second photo.