Yes you can. But GL will not control or iframe in gl UI.
First turn off AdguardHome in gl UI
Second use software WinSCP and connect to router. Find location : /etc/AdguardHome/config.yaml
That file config.yaml cut and paste in your PC. Make sure empty file in router.
Third turn on AdguardHome in gl UI and open page to install manual, set your login and password.
After that you need to focus in luci about dns server with ports.
Don’t forget to make bookmark Adguard Home address