Using parameters for pattern option

Hi community,

I am trying to control the pattern option in Creo Parametric 2.0 using parameters.

I want to create number of holes in a circular pattern, in Creo the option available is "Axis" which requires number of holes and angle between 2 patterns or total angle sweep.

I want to control these inputs of # of holes and angle using parameters.

Can someone tell me how can I do this?

Regards,

Suraj