I am glad others stepped in and helped you out.
It may be worthwhile still looking at using a Revision Title block rather than individual text. The image shows where you would have attributes they could have a default value like "." or "-", even just leave blank.
Multiple advantages, does not matter where it is located re X&Y, can be found by name, can change any attribute by tag name.
It is possible to convert your existing dwg's adding the Revision title block and read the current text, placing it into correct attribute, if that sounds promising let me know.