How to do it with the selected polygons I know. But if I circle the edges and hit P, it just creates an outline or something.

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    1 answer 1

    With the help of P , only those elements that are selected are separated. If only edges are selected, then only they will be separated.

    If you want to separate the region inside, you must first select it. There is a function for this: Select -> Select loops -> Select Loop Inner-Region

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