Yes, I thought it was a ridiculous question. I wondered why you do not make 2 or more GlobalVariables and save whatever data you want into them.
A few hours later, I changed my mind. I thought it is likely that you think that a GlobalVariable can only be a String or a Number. You possibly don’t know that a GlobalVariable can be a collection type (List or Map). Yes, it is a sort of tips that require some lesson. And unfortunately it requires explicit type casting (java.lang.Object → java.util.List), which needs a careful programming effort. So I erased my previous post that said “I have done, find your way”; then posted 2 new ones as above.