I am new to ArcGIS and I am currently using the trial version of the Web Maps to decide if it fits my company's needs before we purchase a subscription. I have currently uploaded 60 layers (.CSV files are limited to 1000 lines per upload) and I need to upload another 100 or so layers. To make navigating through layers easier, I would like to combine several layers into just one. How do I accomplish this on the Web Version of the software? I have seen instructions using the ArcToolBox > DataManagement but I can't seem to find this feature.