Edit Header & Footer with Elementor Theme Builder

I tried to create my own footer using the Elementor Theme Builder. As it turns out, it is not compatible: Once I add my footer, the Header Section of the theme does not display anymore. According to Elementor the theme creators would need to make changes (documented here). Could you make the changes in the next version? Or do you have an alternative, how I can reach the same result? (Sidney Header, but custom Footer)
Thank you!

Hello there,

Thank you for reaching out to us and asking about Sydney theme.

I will flag your query to our development team to check and we’ll be back to you as soon as possible to update you with our plan with the Elementor specific compatibility feature to header and footer.

Regards,
Kharis
aThemes Support