For what you mention, Waze adjusts the satellite picture when necessary. If technically not possible to do what you say. I have raised the issue of moving the roundabouts quite some time but surely or not possible or is not a priority for Waze, so they have not yet implemented.
Enviado desde mi GT-I9500 mediante Tapatalk
Enviado desde mi GT-I9500 mediante Tapatalk
Re: Move Roundabouts