OK, let's start from the beginning.
1. Open ES and look for the 'globe&device' icon in the top left-hand corner of the screen and press it
2. You'll now have a grey tab with white text starting with 'Favorite' at the top > about halfway down you'll find 'App Manager', press on it
3. It will start loading all your installed apps > long-press on any one of them and then look at the top right-hand corner where you'll find 4 little squares with ticks in them > press on it and all of the apps will have the tick boxes ticked - alternatively, if you only want to select certain ones forgo the last step and simply go through the app selecting the ones you want to backup
4. At the bottom you'll have noticed a row of commands from left to right starting with 'uninstall' > backup > Share > Send and More
5. Press 'backup' and all the apps selected will backup to the folder I previously pointed to.