In reply to Bartosz Jabłoński.

Thank you, Bart, for reading and adding these resources.
Indeed, it's a great paper by Susan O'Conor on macro quoting, it can be downloaded here.

Regarding PARMBUFF option, sure one can use it paired with the SYSPBUFF automatic macro variable. Also, you can use a data table or an external file as a data store for multiple values, in this case you can just pass a single parameter pointing to a location of such a table/file/datastore.