sometimes you need to select a portion of text that has the shape of a R E C T A N G L E,
but usually you have to press many times C or even worse <a-C>, with this plugin
you can just turn your main selection into a rectangle quite easily.
Be mindful that tabs are treated as a single character, thus if your selection contains lines with different ammount of tabs the produced rectangle will most likely have a weird length.
rectangle
provide an easy way to yank rectangles as newlines are needed for it to keep the usually desired shape