Choosing the Floating player mode in the dashboard, allows the player to stay present on the screen and keep playing even after its original position has been scrolled out of view by “floating” at a fixed position on the screen. The floating position can also be selected in the dashboard from a pre defined set of options.

Floating Scope

The floating scope is the view to present the floating AD placement.
Usually, it’s the view controller’s view.
The floating position, which is configured on the dashboard, refers to the floating scope borders.
In most cases, it can be autodetected and there’s no need to set it explicitly

But it’s still possible to set floating scope on your own:

Setting Floating scope explicitly