The Lexicon combines a glossary with a concordance. Both resources update while you work.
Highlight source terms to access the Lexicon:
When you click the lexicon icon, the Lexicon panel will expand from the right side of the window:
Concordance results are ordered according to the segment that you are translating. You can also type queries into the Lexicon text input box. You can add glossary entries by clicking the Add new entry button.