How to open a Drawer

I´ve spent a few hours now to check out how to open a Drawer for a menu. But I can´t figure it out. Tried to use “showDialog” in circuit, but this opens the Drawer all over the screen so there is no chance to close it, if the user doesn´t choose of one the menu entries.

And when I instead user “openModalBottomSheet” then the Drawer slides in from bottom, but not from the left.

Can anyone tell me how to open the Drawer the right way so that it only covers a part of the screen?

I found the solution myself. Don´t put a menu icon in the AppBar. Nowa automatically puts one there when the option for Drawer is set on the screen.