Hi, Monica.

If you set up a Conditional Rule on a table, it is also going to show in the Master Details Pop Up,

at least everything we tested so far, unless if you tried a specific condition that we haven't tried yet.

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But if you mean to make a condition that will not normally show in the initial table,

but only to have a condition that specifically activates just for the Master Details Pop Up,

we don't currently have something like that.

If you can just clarify in more details what you're trying to do, and we can advise to be sure.

Thanks.