bezig groups pages en blocks

opzet nog niet definitive versie WIP
Revert "bezig groups pages en blocks"

This reverts commit 4e1f9a4f3408070103dcc21f79be0fccfd1afeda.
Revert "Revert "bezig groups pages en blocks""

This reverts commit 78c5a9d4b80557c4495781642a90e9fedf42bc91.
Set-up Groups en blocks
merge chris