Command Line Buffer

AutoCAD stores everything you type at the command line in a "buffer" which can be accessed with the up and down arrow keys. This is useful for repeating commands or distances that you entered a couple lines ago and don't feel like re-typing. If you're using Dynamic Input, though, INPUTHISTORYMODE must be set to 0, or the "input" returned will be the coordinates of the points, not any distances or text typed in.

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