If you’d like to have the issues separated into a few groups (i.e for feature/release/sprint planning), create some directories. You can add multiple issues and sub-directories underneath each directory.
There are two ways to add a directory to another directory:
Create & drag:
Click on the folder icon.
Once the new directory is created, it appears at the bottom of the Panorama.
Drag and drop it under the desired directory.
Target a specific directory:
Click on the directory for which you plan to create a sub-directory.
With the directory selected, click on the folder icon.
The new directory will appear under the selected one.
To delete many issues or directories, click on them while holding the CRTL key on your keyboard (Command (⌘) for Macs). With multiple issues and / or directories selected, click the trash button to delete them all at once.