Re: newbie to skill scripting
Sorry for the confusion,
stretching/chopping of of vias is a 616 feature (as Andrew says, it's not, by default, enabled at the moment). Contact Cadence if you want to evaluate this.
Stretching (but NOT chopping) of mosaics is also a 6.1.6 feature and is not an early adopter feature so you should be able to use it
Mosaics cannot ...