Delete/Flatten multiple annotations ← Android Using Multi-select Tool you can delete or flatten multiple annotations at the same time. 1. Tap the Annotation Toolbar icon on the Action Bar. If you don't see the Action Bar, tap the center of your screen to bring it up. 2. (Phone only) Expand the Annotation Toolbar.3. Tap the Multi-select Tool icon. 4. Drag to select multiple annotations.5. Now you can delete or flatten selected annotations.