* several features are used
** metapost/metafun for covers and headings
*** {{code|1=for i=1 upto nofmultipars"}}
*** {{code|1=if multilocs[i] == 3:}}
** heading slightly different for right and left page (in order to bring dynamic) (\defineoverlay,\useMPgraphic, \startuseMPgraphic, \signalrightpage, \doifrightpageelse\startsectionblockenvironment)