Dependent & Required Fields

I have over 200 fields which may or may not be in my layout.
Some of them may be required.

I am having trouble saving out of a record because i'm missing a required field, however, i'm not sure which one it is (because it must not be placed in that particular dropdown based layout)

How can i quickly/at a glance/ look at all of my fields and see which ones are required (without going into them 1x1)

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