You can add titles to your queue in the following way:
iOS
1. From the For You screen, tap on your Library.
2. Tap on Saved, Finished or Downloads to find the title you would like to add.
3. Tap on the three dots next to the title you would like to add.
4. Tap on "Add to Queue".
Android
Option 1:
1. From the For You screen, tap on My Library.
2. Identify the title you would like to listen to and tap on the three dots next to it.
3. Tap on "Add to Queue".
Option 2:
1. From your Library, tap on the title you would like to listen to.
2. Tap on the Queue icon at the top of the screen.