Yes, in the Industry module select the blue ‘SELECT SIC CODE FROM LIST” button and then you can select 2, 3, or 4 digit sics. To expand (or contract) the 2 and 3 digit SIC groups click on the SIC name.
Selected SICs will show in the ‘Select SIC Code’ box and can be removed from the count by either clicking the x next to them there or deselecting them in the SIC selection popup.
You can also start typing a keyword or SIC into the “Select SIC Code” box and all matching SICs will show as selection options.
You can toggle the green “Include” button to “Exclude” to exclude the selected SICs.