From the AGACAD website:
Flexible Element and Grid Renumbering
Sort Mark can renumber any Revit® elements just the way you wish, also detecting and renumbering grids. It determines swing direction and orientation, adding them as properties, recalculates shared coordinates, and more.
[youtube https://www.youtube.com/watch?v=7OBItayL3NU?ecver=2]
Sort Mark extension allows you to sort/renumber Revit Elements in different ways and to add additional information to any selected elements. Sort Mark…
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