Appending an UDA to btext of TEXP

Hi Deva,
Thanks for your post, however I want to append an UDA and not a regular attribute.
Problem comes only while appending UDA, is there any other method or syntax I can use???

Hi Deva,
Thanks for your post, however I want to append an UDA and not a regular attribute.
Problem comes only while appending UDA, is there any other method or syntax I can use???