It’s possible. Needs the first errors to right click open a file of imports. Then add the juce modules (in the plugin dir), system includes, apparently freetype2 (for ft2build.h). Just edit the includes dot file in the editor or Kate. Add a run configuration to launch the built standalone with a depends on make standalone. OK.
Also try “Scope: Project” in the “Parser” tab of the “Problems” tab to get rid of the “errors” (Scope: file).