Hi looking for some help please.

Sorry if i have posted this in the wrong section ?

Drawing a vending machine front cover for a project i have been asked to design.

I mostly work with sheet-mreatl & steel so not experienced in the plastic side of solidworks.

I have created a cover using surface loft tool. Not sure if this is the correct way to draw this bit its the only way i know.

I drew the outer cover using this method. The problem i have is i need cutouts in the cover for the touch screens.

Everytime i try to extrude cut this is greyed out ?

Could some give me advice on the correct way to draw this part so i can create cutouts for the touch screens ?

Thanks in advance.

Brian