Lenovo AIO Touchscreen adjustments?

Hello all,
I have a Lenovo AIO C40-50 w/ AMD A6. This AIO has a touchscreen but it doesn’t work about an inch from the bottom so I can’t use the “Z” start menu from the touchscreen. Is there any way to adjust this in Zorin 15.3 Ultimate? I have tired switching to the tablet/Touch theme but same issue.

Thanks in advance.

Would calibrating it work?