Hi Francois Zietsman,
We have added this on our latest version 2.5.0, so please update to latest version. Also you can get setting on customizer setting on move to top section.
Let us know if you got any problems on this.
Note: Here in the tutorial we have take flat responsive as an example, you can applied same for your theme.
If you got any problems on this please don’t hesitate to reach back out to us. We will be more than glad to assist you
Note: Please take a backup of your site before proceeding so you will be in position to take action when disaster strikes.
. Normally we use duplicator plugin to make a backup.https://wordpress.org/plugins/duplicator/.
Here is the video tutorials how to use duplicator and save it to your local computer https://www.youtube.com/watch?v=VdvOGV2eIjE