The standard low speed skip is most likely there, it is a dedicated PMC input. This normally does not need an option turned on or option board.
It is a bit slower as it has to go through the PMC to the CNC, if using a really slow final approach, it is probably fast enough for most applications.
If you want high speed skip there is a 9000 parameter plus you need the board which has a few other features on it.
The Honda plug on the option board has I believe either 6 or 8 high speed inputs, these are divided in two lots for the 15TT.
I can PM you the number of the option board etc.