Hi,
This is not the way Curic Text variables work.
This is an example for “inner” text. (text is placed inside the object group but the width of text also affect to the width of bounding box of the object, too)
You’ll have a bunch of built-in variables from the list to insert.
P/s: For “outer” text (text is placed outside the object group), you should use “@linked_xxx” variables and Link Tool