The script editor allows auto completion via popup for function names and variables. While it has a definitive list of available functions (including functions provided by plugins), variable auto completion is only hard coded (known tags, known hidden variables).

The variable completion could be improved by dynamically extending the variable list. Some ideas:

• Parse all the scripts for set variables
• Dynamically parse the currently edited script for set variables (so if you type $set(foo,bar) it will immediately make %foo% available for autocompletion
• Allow plugins to specify extra variables they support
• We could even try to automatically gather tags getting set by plugins or manually and offer them in the completion as well
• Autocompletion of tagname also for e.g. $set(tagname) and similar functions? (maybe a separate story)