Attaching a script to a Group help please

I would like to attach an Automator workflow or script to a workflow and somehow can nbot seem to do it. Is this possible? To give more detail the workflow, (as it is now but I could make it a script) converts an image to jpg. Thanks for any help.

I do not think an Automator workflow can be attached. For making and attaching triggered scripts, see

Thanks Korm.