You need to see if you have the Extended Weave Schedule enable in the system variables. It's something like $WeavSchedExt_Enb. Make it true if you can and you should get all of those options in your weave schedule dialog. I don't know if this is something that needs a Pac Code or not, but I would look and see if it's there first before you call Fanuc.
Or if you want to keep those settings hidden but still change the values you can do it in the $WeavSchedExt variable.