I have a service layer (with point shapefiles, a line shapefile and a couple polygon shapefiles) that I overwrite as an existing service usually once a week to update my online maps. Question is, if I want to add another shapefile to that service definition, can I without screwing up all my layers online? When I have tried this, I have to remove my layer from the online map and re-add the layer which is a pain because then I have to change all the attributes again along with symbology and scale range, etc. I currently use ArcGIS 10.6.1.