Hi @ChrisInFlorida ,
Thank you for posting on the Instructure Community!
As someone who has used touch screen chromebooks with students in the past, and has tried to do similar things, we haven't found a solution to this either. However, if you want me to be honest, I believe that it's possible the chromebook is purposely engineered this way, and there isn't a setting available to change how it functions. I didn't take a super deep look into any of the settings, however I did glance over them, especially with the display-oriented ones.
Not sure if this is 100% accurate, however this has been my experience with using Chromebooks and using the touchscreen for annotations.
I hope this helps a bit, reach out with any additional questions or concerns!
- Noah