I am a bit disappointed that the code assistant does not seem to have been improved in version 15.
There have been so many requests about code assistant improvements over the years:

• support for private package methods and cursors
• support for array atttributes (array of records)
• suppprt for cursor and array attributes: %FOUND, .count, .first etc.
• better support for overloaded methods (some with one variable, some with two or more)
• records in records can confuse code assistant
• a little more intelligent code assistant: do not suggest procedures when I am assigning a variable, do not suggest functions, constants etc. when it is the beginning of a new statement etc.
• ...

There have indeed not been enhancements in this area.