BUS2105 - additional container other than ReleaseCode?

Hi all

I'm pretty new to workflow so please be kind.  I've searched the forums but not able to get a clear answer.

We are looking at standard workflow BUS2105.  The only container/parameter is ReleaseCode.

Question:  Is there a way I can add more container/parameter to BUS2105 without creating a custom BOR/event?

Thank you.