Transient Thermal Study with a Time Varying Applied Temperature

Can I perform a transient thermal study with a time varying applied temperature?  I can not get the linearly time varying temperature entered.  I want to run a transient temperature study for 33 seconds.  I want the temperature applied to the surface to vary from T=30C to T=400C over that 33 seconds.  Seems like it would be easy, but I can't figure it out.

Thank you,

Jerry

SolidworksSimulation