I have an arc that I would like to lengthen equally at both ends. I know the length I need it to be, and the center is where I need it to be. So now I want to lengthen the arc to the correct size without having to adjust the center of the arc once I lengthen it to the correct length. I suppose I could do the math, figure out the difference between the current and new length, and then lengthen each end the correct amount but it would be so much simpler just to have a "lengthen equally" in the command.
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