The old macro should be accessible for insertion.
User Parameters aren't as practical using the "Play SQL Query" macro.
This works extremely well for our situation - where we often need the users to enter some parameter values but don't want them to be able to, or need to, edit the query itself. For example: entering a date range, and/or some other constraint on the query (as opposed to a filter that can be applied on the results returned)
I hope that the term "legacy" doesn't mean that it will be removed at some stage - that would be bad for us.