To add multiple stickies to an Index Card/Substorm:
- Press and hold the Shift key, click on a sticky that you would like to select.
- Then select as many stickies as you like.
- The selected sticky notes will have a blue outline.
4. Drag and drop the group of stickies on your Index Card.
5. All the selected stickies will disappear and will now be a part of the Index Card.