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adjust datum?
Is there a way to globally adjust the elevation for the whole project? for example, we got some information on an assumed datum and the elevations are all around 11-17 and our survey crew is going out to get more info and the new elevations are going to be on navd88 datum in the 500 range. is there a way to raise what we have already done by a constant x feet to bring them up to the 500 range?
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