It would be great if PureBasic could adapt the same feature seen with other compilers where additional include directories can be specified, for instance if you have a repository of include files which you want to use across various projects, you can just point your projects to that one single location.
(having full path in the IncludePath, or IncludeFile will not substitute - this should allow us to move our projects around and not have to touch the code, only update the project configuration - though even this can be circumvented if we're able to have variable placeholders included)
With that in mind, having the AutoComplete in the IDE trace IncludeFiles (evaluating the IncludeFile/Path ... line in case constants are used etc).
My two cents
