18F4620 hardware multiply

I am interested in using this for an advanced design that needs lots of power but I got used to using pic basic pro for 16FXXX micro's so I would rather not go back to C, does pic basic pro support the advanced features of the 18 series like hardware multiply? Another question is will I be able to write a program that uses full memory of this device or will I hit a wall somewhere? The last question is about the watchdog timer. in the manual I cant get information about this but I read somewhere that if i define NO_CLRWDT 1 the compiler still puts in no ops to preserve timing if this is true how do I stop that because I need full processing power and I would rather clear my own watchdog timer then assume the compiler knows where to do things.

Thank you for all your help people.

I think I have answered my questions for the other stuff I just need to know how to stop the nop's from being put in by pic basic pro when i define NO_CLRWDT 1