Whilst xLimit() and yLimit() do allow the scaling to be manual (so that part is available), I don't think there's a function to control the major/minor divisions.
It's a good idea though. Please contact Cadence and get an enhancement request filed. Even if the move is towards the new ViVA graph, providing SKILL access to things like this is a good idea, and if you don't ask, you won't get... (unless somebody else asks for it too). Yes, in an ideal world all these things should be thought of up front, but in reality there are a very large number of things that
have to be done, and a very large number of things that
should be done, and also a large number of things that
could be done. Inevitably things like this can drop off unless they're requested by customers.
BTW, on Pancho's point about plotStyle attribute, I recently posted a solution on
http://support.cadence.com which provides a function to set the units for a waveform, and the plotStyle for a waveform - providing a calculator function to do this - so you don't need to remember the attribute. I've also got an enhancement request asking for a public API to set these attributes - or that they be documented. Search for abSetPlotStyle or abSetUnits and you should find it.
Regards,
Andrew.