How do you change the spindle speed in the middle of a tool path?

I was recently wondering if there was a way to change the machining speed in the middle of a tool path in CATIA's advanced machining workbench. I have a part that we want to enter slowly, proceed along a surface, and then change to the regular machining speed. Breaking the tool path into two operations is NOT possible in this situation. One solution, though not ideal, is to use the Toolpath