Unfortunately not. After numerous calls with Meraki final call ended with Meraki advising it's not possible to do this with Meraki MDM.
So we will need to get 100 iPads back to wipe them and set up as "normal" one user iPads as currently they are unusable in current configuration without that functionality.
Their best recommendation was to request this feature. Disappointing to say the least especially that Apple provides that functionality, it's just Meraki not making use of it.
Thanks,
Pav