How to Delete

If you are on a Card, use the '...' in the top-right of the Card

You can also open the menu in the thumbnail view of Cards - and a popup will appear

Similarly, to delete a Stack you use the '...' menu in the top-right of a Stack

To delete a Workspace, open the Workspace edit menu and select 'Add/Edit Workspaces'

and then delete the Workspace you wish:

Deleting Multiple Cards at Once

If you are in the thumbnail view of Cards, when you open a Stack, you can click the '...'  menu in the top-right.  There are a few options and the 2nd from the bottom is 'Multi-Select'.

When you click that you can select one or more Cards and then click the Delete icon to delete the selected Cards.

Note: the white 'Tick Checkbox' icon to the left is the 'Select All' option - to quickly select all the Cards.

Click the Blue 'X' icon to exit Multi-Select mode.