If you’re downloading or updating more than one app at a time from the App Store, it shows the first one as “Loading…”, and the rest “Waiting…” But some apps can be very big and take time to download, and you need to get the one waiting to download first.

That’s easy:

1. Tap the one which is loading, it will then be paused and the next one waiting in line starts loading.
2. Repeat the same to the rest until the one you need to start loading.
3. You can also tap the one which has been paused to start waiting, or loading when no others are loading or the rest are paused.

Enjoy! 

Via Techsupportalert