Select My Files while on the Dashboard. Click My Design / Image Library.
Click on the settings icons highlighted below to create a tag.
Enter a name for your tag and click on ADD TAG.
Click on the vertical dotted icon below your design file / edited image in the My Designs / Image library folder and select attach a tag -
Select a tag. You can select one or multiple tags for each design / image to organize it according to your preference.
In order to access the files under each tag, click on filter using tags.