Thank you for reaching out on the Redgate forums with your SQL Data Masker question.
Regarding your query, I'm sorry to say that each parfile can indeed only point to one masking set at a time.
It may be worth noting that if you want to apply the same masking set to a different database with the same schema, this is possible, but you would still need to edit the parfile to change the target db connection as described here:
More details on Command Line Automation can be found here:
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