Absolute position panel in Xamarin.Forms

Hi guys.

I need to show some panel with some information when user focuses some Entry (Editor).

Scenario is the following:
1) User focuses some Entry on a page
2) Panel with some recommendations are shown near the Entry Box.

Panel should be shown over the rest layout (Z-Index is bigger).

So, I need something like position:absolute in HTML.
I know about the RelativeLayout, but if I use it I should have whole my form created inside of RelativeLayout.

Thanks for your help!