Script to add iPad as a linked keyboard/mouse?

I have 2 macbook pros in clamshell that I swap between using a KVM switch. I have to manually re-add my iPad as a linked keyboard/mouse every time I swap macs. Note that I can't enable "**Push through the edge of a display...**" or "**Automatically reconnect to any nearby Mac or iPad**" because then it will connect both my iPad *and* other macbook (but I only want the iPad to connect). Is there a way to either: 1) Make a script to add my iPad as a linked keyboard/mouse as shown below 2) Connect my iPad as a linked keyboard/mouse through a physical connection while keeping it charged through a KVM switch? Here is my KVM switch: https://www.amazon.com/gp/product/B095DDPKN3