Set default center of map and zoom level in form

@PNPyrenees - I'm not sure if you've seen the discussion around remembering the last zoom level. We are thinking this functionality will come later in our roadmap.

It doesn't sound like that will completely solve the problem, but I'm curious to know if that would help or not. And as @Grzesiek2010 mentioned, learning a bit more about your workflow and why it would be helpful will give us better context.