Hello All. With previous versions of SPB without the Constraint Manager, it was possible to remove DRC check for a layer or for a category by entering "-1". Now with the Constraint Manager, it seems that sometimes, entering -1 works but sometimes not. I want to remove DRC line-to-line check for a layer which is a "pseudo" bonding layer... (I do not want to use APD for that).... (and I don't want to "Waive" them...) I would prefer not to have DRCs. But I cannot succeed.... I have DRCs with actual value 0, constraint value -1.... How can I do that? Thanks in advance. William.