The Ref Des text is really just a place holder used when the component is placed and the real Ref Des from the netlist is assigned. In the Part (.dra) I have always assigned the Ref Des Prefix that I expect when placed on the design "U*" for ICs, "C*" for Caps, "R*" for Resistors, "D*" for Diodes, etc. but here again it is only a place holder and will be replaced with the Ref Des defined in the netlist. The one place that the Ref Des prefix is used from the Part (.dra) is during Auto Rename Refdes, enable "Preserver current prefixes" and it will use the Ref Des prefix from the netlist and disabling the options will use the Ref Des prefix defined in the Part (.dra) Hope that helps, Mike Catrambone
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