Backup/Restore
Whenever you make changes to your program, it is very highly recommended to run a backup in case you ever lose your settings, you can use your backup file to restore back to where you were, and yes, it does happen. Numerous times when someone when into their device settings to clear the cache they inadvertently cleared the data which cleared everything they did, accidentally uninstalled our app, or make some changes that messed up the way they had it setup. Having a backup file is cheap insurance.
It is recommended to run the maintenance steps from HERE before running a backup; this will remove a lot of the stored data that's not needed to make your backup file smaller.
Go to Settings/General, scroll to the bottom and you'll see Backup Data and Restore Data. To back up your data, click on Backup Data, you will not have the option to choose what folder to save the backup to. If you have external storage, such as a flash drive, that will show as an option too. There are several ways you can share your backup to other devices so they will have all the same settings, this is explained HERE.
To restore your setting, just click on Restore Settings then find your backup file and click on it. If your file fails to backup or restore, use the system picker to all our app to use the folder your are trying to save to or restore from.
NOTE: Backup files can take up a lot of free storage space, if you have a file management app installed, using a file management such as Xplore, you can use it to find your backup files and delete the old ones you no longer need.