Matlab arduino serial interface for GPS and servos?

Hi all, On the documentation page "Use Serial Communications with Arduino Hardware" it says "Serial communications are not supported in models that also use the Arduino Standard Servo Read, Standard Servo Write, and Continuous Servo Write blocks." Is there anyway to do this? We need to access a GPS shield via soft serial and also swing servo(s). We are wondering if we could go back to the old style of Arduino I/O and just write PWM to the servos and talk standard serial to the GPS board? Any ideas or suggestions would be appreciated.