We have recently added a new pop-up dialog in order to help users create maps after uploading data.
Once a layer is uploaded and processed, a dialog will pop up that gives them several options. They can either "Add to New Map" or "Add to Existing Map," or they can choose to "Edit Layer" directly. One note is that if a user is uploading multiple layers, they can only add one layer to the new or existing map. If they want to add the rest of their layers, they can click "Select Layers" from within the map editor. Choosing "Add to New Map" or "Add to Existing Map" will take them directly to the "Map Editor," and "Edit Layer" takes them to "Layer Editor."