Using Inventor 2012

I have an adaptive part with holes 100mm in from each end as well as 3 holes evenly spaced along the length of the part. They work fine with the adaptive aspect as one spacing is equal to the next. However what I want to know is if the part grows to a length that the hole centres are more than say 300mm apart is Inventor smart enough to add an additional hole? If so how do I go about defining this?

Any help would be great.

Thanks