Update Layer Symbology

Discussion created by on Jun 18, 2011
Latest reply on Jun 19, 2011 by slburns
If I am working with an MXD that has multiple river layers and each layer has different symbology ex color, and line thickness. Is there a way to use python script to change all the river layers to have the same symbology. I want to be able to change all the layers symbology at the same time with out having to go into the properties of each layer and making the changes there.
Can I use a reference MXD with the symbology I want and through python use the reference layer to update the other layers symbology?