What do I need to make this work? I have S23 Ultra and Tab S8+ both running 5.1.
How can I make them see each other? I tried with BT mouse, then what?
your question may be more appropriate if you post it in the Samsung Community Forum
What exactly are you trying to do?
this is what I am assume is meant by multi-control:
( Samsung Multi Control allows you to control your Galaxy Tab or Galaxy smartphone using a Galaxy Book laptop. Heck, you can even use a Galaxy Tab with a keyboard and mouse connected to it to control a Galaxy phone.)
so possible I am misunderstanding the OP’s question