What are the keyboard shortcut for Code Assist/Toad Insight?
Use ctrl-T to bring up the pick list. The list that comes up will show whatever matches the text the cursor is next to.
Type in table name "C_CUSTOMER."
This will bring up the pick list for objects that match "C_CUSTOMER". If it's a table and the only match, it will bring up the expanded column list.
If the cursor is not next to anything, then it will bring up a full list of all objects.
The ctrl-period shortcut auto-completes tablenames or if there is more than one table that matches, it will bring up a pick list of matching names.