Wondering if there is a way to clear custom macro variables particularly #500-#999. All my variables are unused/blank but I input a value into #522 that I do not need to use and now and I'm wondering how to clear the value out, I've changed the value to zero but wondering if I can clear it so it's blank again like the rest. This is on a Fanuc 18-T control, any help on this would be appreciated.