If you are using "extends = two", this suppresses some of the Ctrl+Space hints. This is a known bug that Adventuron will fix in a future build. It is mentioned in one of the other threads. If you temporarily comment out this line, you can see the Ctrl+Space hints for most (if not all) all of the pre-defined system messages. Once you've finished fiddling with the system messages, don't forget to uncomment "extends = two".