my tablet is a huion kamvas 22 plus, I've been looking for a solution to quickly tug my keyboard away while still having some access to it as hotkey for a long time and eventually decided to design my own.
I tries several design that clips onto the tablet, which isn't easy since the back of the tablet is curved, eventually I gave up on that front and went with this one.
This setup is held together only by gravity but it actually works quite well, the top groove makes it very stable, and I can simply drag the tablet to slide forward over the keyboard and make it closer. Add some extra tape to the top groove can prevent it from sliding sideways.
Give it a try.
The author marked this model as their own original creation.