When I open some files from our customer, the sketch geometry is sometimes spread over many separate 3D sketches.  Is there something that can be done to merge or combine all 3D sketches into 1 3D sketch and delete all of the other 3D sketches?  In some cases, there are as many as 500 separate 3D sketches.   It makes it extremely time consuming to edit.

See attached screenshot for clarity.

Thanks

Mark