Forum Post: How to change customVia using skill

Hi All, I'd like to replace a customVia with a different customVia. I'm not able to get the parameters of the old customVia using car(geGetSelSet())~>viaHeader~>overrideParams command, as it returns nil. Could someone help me on how to get the rows and columns information for customVia and also assign these to a new customVia. Thanks, Prasad