The Auto-Suggestion option populates suggestions based on source content, such as numbers, URLs, and proper names. It can also suggest terms for the glossary, Translation Memory (TM) matches, and Sub-segment TM matches.
To configure auto-suggestion:
Click Auto-Suggestion in the General Preferences group.
Select Enable Auto-Suggestion checkbox and additional auto-suggest options and click OK.
With Auto-Suggestion enabled, there are four options available:
Source
Suggests changes to source of the segment: numbers and capitalized words only.