hei'ya Tarakan, don't know about "official way",
but I LMB click (highlight) the sketch in the feature tree,
Ctrl+c (copy feature sketch),
click on recipient area-
or open new sketch on plane or surface,
Ctrl+v (paste feature sketch)-
and position and add relations as required
hope this helps- have good'n kelef
Select sketch on feature tree,
controls then left click and drag sketch on to new plane.
that should work,
Even better, use derived sketch, if you want to maintain the dependency between the 2 sketches.
May I ask why you want to do that?
If you are wanting to create a new part to mate with the dovetail slot, you could share the same sketch.
Convert Entities will not work while the original sketch is in edit mode. Close th eoriginal sketch, open a new sketch on the desired plane, and then use the converted entities tool.