This, and several other features, were never fully implemented in the released versions of QDOS, but were improved in later extensions to the operating system produced by Tebby's own company, QJUMP.
Ova i još neke osobine nisu nikad bile u potpunosti primijenjene u objavljenim inačicama QDOS-a, no poboljšavalo ih se u kasnijim proširenjima operacijskog sustava kojeg je proizvodila Tebbyjeva vlastita tvrtka QJUMP.