many languages like Java have got a little helper tool in their IDE, which cares for the right import/include statements.
The helper tool adds the necessary lines for including the needed libraries(or UDFs).
This script organizes the includes for AutoIt and it can be added to SciTE4Autoit3 very easily. Getting started?
1) Extract the zip here (ProgramsDIR) ..AutoIt3SciTE
2) Open SciteUser.properties
You'll find the file here : @DocumentsDirUSER
or via SciTE menu -->