How to Apply an Overlay to a Group of cards all at once.

in the My collection
There are different ways to make Group Selections:

use a filter to narrow down the cards
you can Make Group Selections using the CTRL key
Hold Control down and click on a card to add it to the selection Group
Keep holding ctrl and ***** a windowed Selection

Then Right click on a single card in the group

and select Customize.


Alternatively you can use CTRL-A ( Select ALL )
To Select ALL of the cards.
( if you used a filter, it selects all of the Filtered cards )

then Right click a single card and Select Customize

You can do the Same with a Playlist
click on the Playlist to see the contents.
then use CTRL-A to select ALL
Right click a single card, select Customize.

Here is a Demo Video
It Has No Sound.
https://wyldanimal.com/videos/Overlays-group-selections.mp4