Drawing part / Sketch dimensions missing

I want to create a drawing of a specific part out of a part file.  Here's what I'm doing, and the problem I'm having...

I'm creating a new part, from/out of a part file using the "insert into New Part" drop-down option, but it doesn't seem to be taking the sketch with it, hence, no dimensions.  So that when I create my drawing, there's no dimensions to show.

Is there a way to create a part, from a part and have the sketch and dims included?  Or should I be trying to achieve this a different way.

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