I see how to add custom columns to the plant schedule, but is there a way to do it without changing the entire preference set? Or to turn off certain existing columns? I want to replace container size with a custom category but I don't see how to turn off container size and turn on my new column. I could delete it, but then it would disappear for all the other projects? Do I have to paste landfx generated data into a separate excel file and use that for a homemade schedule?