REOWENJR

HI I have modified some trusses in the CAD Detail Management in CA X17 but they are not presently inserted into my framing plan. 1) Is there a way to select one of these modified trusses and insert it into the framing plan? 2) Is there a way to switch a one type of roof truss with another? IE If I have truss TR-1 how can I swap it with truss TR-3 which is in my CAD Detail Management? Any help or suggestions will be greatly appreciated.