I just installed V5. Woohoo!

Suggestion: Add any assigned keystroke shortcuts to the pop-up tool tips.
Oil Brush: Keystroke - "B"
Pallet Knife: Keystroke "K"

Oh, And "PLEASE" save the size of the popup window for the keyboard shortcuts. V4.5 did not save this window sizing too and it is annoying to have to resize this window every time you work with shortcuts.