Joined: 03 Oct 2009 Posts: 1790 Location: Bloomington, IL
I recommend that you start a new thread for your question, rather than append it to a thread that is eight and a half years old. I have done so for you.
)SEL and )ENDSEL are ISPF file-tailoring directives. Neither is actually Rexx, although many confuse the two. I recommend that you read their descriptions in the ISPF Dialog Developer's Guide and Reference.
Out of context )SEL and )ENDSEL by themselves do nothing.
Those are simple sequences of characters with either wrong or strange syntax.
It depends on: where, and how they are used?
As already has been told above, it might make sense when used with ISPF File Tailoring Services. Unless there is a minor idea about this stuff - nothing to talk about these two words.