@Anonymous Thanks for your patience on this. I have checked with engineering team, and they have confirmed that currently this is not supported in ACS.
your feedback is noted, and I have relayed the feedback internally to our product engineering team.
We also have a feedback item on this, if you wish you may upvote and comment on the Uservoice post - All of the feedback, you share in these forums will be monitored and reviewed by the Microsoft engineering teams responsible for building.
Feel free to reach back to me if you have any further questions on this.
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Please 'Accept as answer' and ‘Upvote’ if it helped so that it can help others in the community looking for help on similar topics.