Repeat Function?

I use Xara 3.2

Say for example I am drawing a clock face and want to divide the circle into 12 sections as a guide to place the clock numbers. I start with a straight line bisecting the center of the circle and the 12 o'clock position. I select the line and move its center of rotation to the circle center. I then clone the line and type -30 degrees in the angle box and hit enter. The one o'clock line is drawn --- but to draw the 2 o'clock line I must clone and again type in -30 degrees, etc

Is there a function to speed this up so repeated typing is not necessary?

Thanks, Ron