I'm searching for a way to update layer symbology. I have around 50 mxd which have all the same TOC made of 2 dataframes (one .lyr for each) containing numerous layers / layer groups. The data is essentially shapefiles, most of them are in different folder/disks. The file organization technique is something that I would do differently if it was my data, but I have to deal with it as it is.
I don't wan't to import the .lyr files and delete the old content in each of the maps, because I would have to re-do the legend each time (and I don't want to convert the legend to graphics for obvious reasons...).
So, does anyone know a script or anything else that could help me to link or apply a .lyr symbology to a bunch layers/layer groups in multiple mxd?