Clear custom macro variables #500-#999

[TubbyTradesman]

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.

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[drdos]

It would be better to have them all set to 0. If you ever intervertantly use one that has a NULL value it can cause your machine to crash

[TubbyTradesman]

Thanks drdos, all off the macro variables are NULL or no value in them, except for #522 I mentioned, which now has a 0 in it. I was concerned leaving a value would be more dangerous then no value at all. Is it even possible to clear the values in #500-#999 though?

[drdos]

You can try using the space key

[Armageddon]

MDI Mode
Input:

#522=#0