The conversion of the dining room into a dual- or multi-use space entails, in part, the installation of some cabinets for hidden storage, shelves for "books and looks" and a window seat. The window seat alone serves three functions in my mind. These are: 1) Storage. I'm hoping I can get my vacuum cleaner in it so it's one less thing in the closet; 2) A seat for a dinner guest when the dining table is fully extended; and 3) help soften the dining room look that's normally all hard surfaces…