The ability to link a column/parameter in schedules to a tick box for it to be visible depending on a stage of delivery. Example being to have commissioning and service parameters live at the end of the "master" equipment schedule where by they are only visible when that tick box in the schedule of "Commissioning" is ticked.
Yes I know different schedule templates can be applied to show different things, but the issue arises where by if then you need to change a parameter it then needs to be changed in a bunch of templates rather than the one.