I could not to find this exact/specific request regarding "constraint" in the product ideas, so I do not believe it's a duplicated but could be wrapped in with just advancing capabilities in the flow area....
Example: After wait step we are needing to re-evaluate if they have been sent an email in the past 1 day, if so, do nothing.
Currently you can not do this because you can just select Choice > not was sent any email (but can't contain to in past 1 day) ie. if it was 2 days ago it ok to send.
This is a basic example, but all constraints available in smart list to ALL attributes that have them available in the smart list area would be helpful!
Overall, this seems strange that you have "constraint" options available in the smart list and not in the flow. It creates more work when I could do everything in one flow if I wanted. I know other product ideas are out there in the community about complex choices in the flow. As mentioned here, even leaving the flow as it stands, but adding the constraints would help us.
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