RVC.LSP, submitted by J.D. Henman, enables you to quickly place a revision cloud around an area with just two picks. Load the LISP file and then start the command by entering Rvc at the command line. You will be prompted for two points. Based on the distance between the points, the command automatically sets arc size minimums and maximums, and the revision cloud is constructed on a layer named "X." If you need to create an odd-shaped revision cloud, using this program first can automatically set the proper arc size for the area with no guesswork. RVCT.LSP works in the same way, except it adds the ability to include text.