Is it possible to temporarily turn off columns which you don't want to see all the time? I have some special columns which use regex's etc which I don't want to lose and can't easily type in again off the top of my head. I would like to be able to prevent them from displaying by ticking a check box or something.
At the moment I just put them a the bottom of the list, but they are growing in number and I am worried they could slow the display down if it has to calculate all these values unnecessarily.
thank you