If you want to make the selected app your new default app, simply press `SELECT` once more. If this is not what you wanted, either press `MENU` once or select `Exit` using the `RIGHT/DOWN` key and then press `SELECT`:
From now the app you chose will be the new "Home" app. This app will be started after turning on the card10, when selecting "Home" in the main menu or when the main menu times out.
[](/media/card10buttons.svg)
You can change the button layout to use the two buttons on the right side for `UP` and `DOWN` and one of the buttons on the left side for `SELECT` in the menus:
[](/media/card10buttons-alt.svg)
To do so you have to modify (or create) the `card10.cfg` file on the card10. Add the following line to it:
```
right_scroll = true
```
More information about `card10.cfg` can be be found in the [firmware documentation](https://firmware.card10.badge.events.ccc.de/card10-cfg.html)