To sort "good" dictionary examples from other extracts that could not be usefully used in a dictionary:

• Select a corpus and make a concordance.
• Click on View Options (NOT KWIC/Sentences).
• Go down to find the box that reads "Sort Good Dictionary Examples". Click this box to tick it.
• When you click on Change View Options, your concordance will only have extracts that the computer has decided are "good" extracts.