How do I copy and paste chunks of code

Hi guys,

I have no issue copy and pasting a chunk of code with a local variable, but when copying or moving a function with a local variable into a group I get complaints about that variable not existing in scope. My only way of going around this is adding the local variable to the group, then move the function and then change the variable name to what it should be after deleting the temporarily made variable.

Any suggestions?