Unable to see User eixt macro in SCM 4.1 - When creating a Collective Macro

Hello :

we are SCM 4.1. We have a need to run 4 macro in a sequence. I felt that I could create a collective macro and list the macro's.. The macro are user exit macro's. and I am unable to see them in the drop down list.. tried to search OSS Notes . did not find a lot of info.

Would appreciate any insights and suggestions. We are on SCM 4.1

Raghu