It sounds like you may be interested in creating a Collection. A Collection is similar to a Folder in that you can group maps together, but a Collection will allow you to automatically shift from one map to another based on your location. The great thing about Collections is if you’re unsure what map you’re currently located on in the Collection, you can open one of the maps, tap the location crosshair/arrow in the bottom left and the map you’re located on will open automatically.
Please see this help article for Android and this help article for iOS.
If you have any other questions or problems please don’t hesitate to contact us via our Support form at help.avenzamaps.com > Get Help.
All the best,
Avenza Systems Inc.