Use
? (question mark) to indicate an unset value. For example,
Mysymbol = ? in a query would mark those tests where
Mysymbol is unset. Space around the equals sign (=) is insignificant.
If you need to modify the symbol in the query, select it from the list box and click
Edit. The test plan editor places it in the text box and changes the
Add button to
Replace. Edit the symbol or value and click
Replace.
To exclude the symbol from the query, select it from the list box and click
Remove. The test plan editor deletes it from the list box.