Use of SheetActivation, PageActivation and PageCondition in Stripping style layouts

We have

see e.g. SheetActivation, PageActivation and PageCondition in detailed layout (Layout and PlacedObject)

We omitted them in Stripping.
They might need to go to:

For force front / force back etc: Note that SignatureCell is 2-sided and may need additional Metadata
SignatureCell/@PageActivation
SignatureCell/@PageCondition

Layout/@SheetActivation should be sufficient for insert sheets

Do we need any of the three in Position? - Only if we find examples that cannot otherwise be described