Unselect or select all buttons

Feature description:

When i want to add all song from a album into playlist, i wish there will have a select all botton, it will help me to add song quickly.
Unselect button is use too like select all.
And i hope select all button to be used all the time when multiple selections are needed also.
If there could add a smooth select better, use to select some song line up.

Problem solved:

It can resolve user one-click selection only.

Brought benefits:

Faster and easier
Less handling

Other application solutions:

 

 

Additional description and context:

 

 

Screenshots / Mockup:

    

You can drag and drop to select and to add an album to the queue just press 3 dots on the album then queue.

Select all can’t work in many cases due to lazy loading and very large libraries.

But there’s already an unselect all.