3. A document processing apparatus according to claim 1, wherein said key input means enters a selection instruction into the apparatus instructing halting of sequential display of each of the titles stored in said storing means and the maintaining of the display of a currently displayed title.
3. A document processing apparatus according to claim 1, wherein said key input means enters a selection instruction into the apparatus instructing halting of sequential display of each of the titles stored in said storing means and the maintaining of the display of a currently displayed title. 4. Document processing apparatus according to claim 3, wherein the document associated with the title, the display of which is maintained in response to entry of the instruction for halting sequential display of each of the titles and for maintaining display of the currently displayed title, is read-out from said storing means.