Another regular contributor, Leonid Nemirovsky, shares a utility that adds the values in a table created in AutoCAD. Sum Table Values (Tip #1994) is a Visual LISP macro set. Load the LSP file and then type TTR to activate. The first selection is for a table object. Older versions of AutoCAD can't use this utility because they don't support the table object type. Once a table is selected, the TTR function lets you add the values of a given column identified using an integer value from 0 to the number of columns minus one. This is another handy utility to have around when creating bills of materials.