Method 1:
The GetData and SetData functions can be used to transfer data from one tag to another in a macro.
Use GetData to grab the value from one tag and store it in a variable, then use SetData to move the data from the variable into the other tag.
Use the Get/Set FN tool to learn how to configure the funcitons.
You can use tags or addresses with the macro functions, and the macro can be set to run periodically.