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AUTO UPDATING FIELDS?

AUTO UPDATING FIELDS?

AUTO UPDATING FIELDS?

(OP)
Is it possible to have autocad calculate a formula and put the result in an auto updating field? Something like this:

x = 200
(something that is able to be updated easily like a block attribute, or...)

auto updating field = x*2 => auto updates and shows "400"

I just want to be able to have a block attribute(or something), that when a number is entered, another field is updated using basic math. Is there an easy way to do this?

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