Tom: not to belabor the subject but I've written several albums worth of material without using notation software to tie notes together... I just used my sequencer. It's a matter of technique with the tools you have available, that's all. In any piano roll editor, you would select the first note of the two notes you intend to "tie" and extend it's duration into what would be the duration of the second "tied" note, then erase the second note altogether. When the sheet music is displayed, it should show tied notes to indicate the fact that a note has been extended beyond it's measure. Am I missing something?