how to disable the onscreen text - zbook x2 g4 - express keys beside screen

[lincolnr]

hello....im a digital artist, i use a zbook x2 g4 manly for photoshop painting....i have customized the express keys next to the screen with a few common commands (like alt and zoom and brush sizes etc)...using the "HP CTREATE CONTROL PANEL" and using a proper HP pen....all works fine.....my only issue is that when you press each button some text pops up on the screen saying the buttons function for about 2 seconds....i cant find anywhere to turn this off, im assuming there is a registry key or something like that.....but thought i would ask the pros first if anyone knows best way to turn off this feature, as its slightly annoying and not needed for my workflow.

any ideas would be fantastic.