Thanks for the tips Kari, but I am still missing something
Can you tell me how to interpret the lingo such as what you wrote "editSelectVia -nets oldNet"
Does this mean to type a command in the command line? Or does this mean to use the menus? Is there somewhere else I should be putting this text string? I ask because I've seen that type of terminology on these boards and it's unclear to me how to interpret.
If I am in etch Edit mode I cannot select the via without a trace, excuse me "Cline", being started from it. In general edit mode I have to pre-select the via, as any attempt at using the menus Edit > Change will gray out the vias in the Find filter. I'd appreciate further advice.