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Robert,
You may not need the info now but, I am using C3d 2014 and am in a similar predicament . I looked for a solution as you did but there was no help..... I had a crazy idea based on earlier tests I had performed attempting to transfer points between files and it worked.
Isolate the points you want to reset, then make a block out of them. Now explode and the points are reset.
I really liked LDD.
Tony
Isolate the label layer, reset one label. Hit return and use a crossong window to select all of the others.
John Mayo