Paint Tool need its Shortcut

Hi!
When working fast no to loose muse, there is a small need to manage tools with left hand while right hand is on mouse not to loose position where I shoud change something, for example, note volume, length, split or automation curves etc.

Therefore there is one misake i find in Key Commands list - there is no Paint Tool to which I could assign a key.

With this I post a second request: https://www.steinberg.net/forums/viewtopic.php?f=252&t=131788