how can you set a stepper motor to clockwise or counterclockwise?

 

Yes, absolutely

Well, it isn't a setting, per se, just how you pulse it.

If you normally pulse 0 1 to step forward, 1 0 will step backward or reverse

 

is that applicable for any drive modes?

 

Hello,

Here is a steppermotor tutorial:
http://www.cs.uiowa.edu/~jones/step/

This is a link from the EDUCYPEDIA on steppermotors:
http://www.educypedia.be/electronics/motorstep.htm

Bertus