Target Mode

Lite version

When you double click on a playlist, it gets a little target symbol. After that, any song you double click on will go into that playlist. This helps people who don't want to deal with drag and drop. To turn off Target mode, just double click the targeted playlist.

Pro version: Singer login

For example, a singer would "log in" by double clicking their name. This sets their "Tonight" list as the target. Then they proceed to double click songs from the library, or any playlist. Then they "log out" by double clicking the singer again to un-set target mode.