You can use relations when specifying displacements and rotation angles. For example, when prompted to enter displacement in the Y direction, you can enter:

(where # is the internal feature ID of the NC sequence)

All displacements and rotation angles will be treated as dimensions and assigned dimension IDs; number of instances will be treated as an integer parameter (similar to the number of instances in Creo Parametric feature patterns). All the pattern information (including the pattern type, dimension and parameter values and IDs, and relations used, if any) will be listed in the NC Sequence info.