Passing information into functions

I can see why you are struggling with this. There really isn't an easy way to reference a global variable indirectly. There is 1 way I was able to come up with for you however. Try this out:

drive.google.com/file/d/1HXei-9dZKNK7auwO9zIhSobVDIKQ4U_y/view

I believe this will do what you are asking for. However, it could very quickly get out of hand if you have a bunch of global variables. You need 1 event per global you want this function to change.

On a side note, why are you using global variables for this? Do you need the values to persist across multiple layouts? I only ask because I see many newer users using global variables like they were local variables. If these values don't really need to be persisted from 1 layout to the next, you could cut down the number of events necessary. For instance, instead of using globals, you could store the values in an array. Then, you would pass the index of the value you want to modify instead of the name of the variable. This would take the above example from 4 events in the function to just 1. In fact, this would even work if you do need these values to be persisted because the array is considered global if I remember right.

also if you are using C3 you can have the function return a value in the actual System Compare Event like this:

dop2000

Thanks! and how do I reference elements using scripting?