relative tolerance, order of integration 'gporder' , constraint order 'cporder' in GENERAL PDE in Comsol 4.2a

Hi,

I hope that someone could help me.
I am familiar with Comsol 3.4, but now I have started using comsol 4.2a

I have 2 questions for comsol 4.2a. I use for my simulation a 'General PDE'
1 / how to change the solver relative tolerance ? (stationary solver)
2 / how to modify the order of integration 'gporder' and constraint order 'cporder' ?

Thank you