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Save Part (in external File) dialog window

Open virtual part and get Save as dialog window

So, here we see that these dialog windows are different.

Save as dialog is nearly I need: "Assem1 Part9" or "Assem1_Part9" or "Assem1-Part9" or (some prefix case).

So please make these dialogs equal and add option for prefix (suffix) and delimiter.

Thanks in advance.