You can add or remove assets from the trade view in the app by following the steps below:
- Open the Abra App and go to the trade screen
- Tap: 'Add Assets' button at the bottom
- Tap: Assets you'd like to add. The assets that already exist in your wallet will be highlighted. You can tap on them to remove as well.
- Tap: 'Save' at the bottom of the screen.
Please note, that you can not delete assets that have a balance. However, you can delete or add multiple assets at the same time.