Access Xamarin Forms Layout (Frame) in Android

Hi,

i have a question.
I'm working on an application which provides UI with Xamarin forms.
Now i want to show a toolbar or a dialog with dynamic contents (based on other circumstances) in my application.

I can simple do this in Android.
But is it also possilbe to create a new Frame in my Xamarin layout and access it by Name or Id on Android???

Thank you in advance.

Best Regards