How to change Variables in one step

Hi all,

I'm currently working on a project where I have created 5 scenes with similar interaction using variables and slide triggers like -
"Set Var1 to 1 when timeline starts"

"Set Var1A to True when User clicks Next Button"

 

Now I want to change the above triggers' variables (which i have already created in the project) for the second scene like this:

"Set Var2 to 1 when timeline starts"
"Set Var2A to True when User clicks Next Button"

 

Essentially, I want to replace 'Var1' to 'Var2' and 'Var1A' to 'Var2A'

Of course i can go to each slide and do it but it is very tedious.

I am looking for a way to do it in one go... in any way possible.

Looking forward to your help

Cheers :)