The property class. If you want to restrict the properties to those of a certain class or classes, select the class from the drop down box. Click on your choice so that it is highlighted. If you want multiple classes, press and hold Ctrl while you mark additional classes. To mark a range of class in the box, click on the first class, press Shift and then click on the last class in the range.
Units Use the drop down box to select the comparison operator.
If you are interested in properties that have less than a number of units, select less than . If you are interested in properties that have certain number of units or more, select greater or equal . If you are interested in a range of number of units, select between . Type the units of interest in the text box to the right of the drop down box containing the comparison operator. If the comparison operator was between , type the top number of units in the text box that is below the first units box.