How can I expand my 4-digit SIC search to a 3-digit search or 2-digit search (select more than one SIC code)?
By pressing and holding down the LEFT mouse button, you can highlight a series of SIC codes (either by two digit SIC codes, three digit SIC codes or any series you want [all of manufacturing, for example]). By holding down the CONTROL button on the keyboard (and clicking with the LEFT mouse button), you can highlight a noncontiguous group of SIC codes.
