In a playlist, long pressing on one of the next songs in uRemote will do the job for you. On the device, you can press the skip back or skip forward button.
There are 2 behaviors for the same action depending if playback is ongoing or not.
1. If a playback is ongoing, you can modify what your next song would be.
2. If playback is not happening, the main song can be modified and the next song will be automatically updated too.