Transferring variables
You can have the macro runtime transfer to the target macro all the variables that belong to the calling macro, including the contents of those variables, by setting the Variable Transfer listbox to Transfer (the default is No Transfer).
This transferring of variables and their contents allows you to use variables to pass parameters from the calling macro to the target macro.
After the target macro gets control, it can read from and write to the transferred variables in the same way that it reads from and writes to variables that it has declared itself.
For example, if MacroA currently has two integer variables named StartRow and StartCol, with values of 12 and 2, and then MacroA launches MacroB with a PlayMacro action, then MacroB starts out having variables StartRow and StartCol with values of 12 and 2.
Even if the transferred variable belongs to an imported type and contains a Java object, the target macro can still refer to the transferred variable and call methods on the Java object, or can write some other object into that transferred variable.