I am trying to edit my old bsheet border symbol with the symbol editor. I want update the text property named YEAR in a title block. I get the error "This property is not defined in the Central Library Property Definition Editor. Please define the property before editing." What is the Central Library Property Definition Editor? The property does exist in the netlist.prp file for the schematic. How do I add these to the symbol editor? I am using VX2.3 and copying my netlist.prp from a template project.