" if entire message fits on the screen, read/archive it, move to the next one
if msg_top['id'] != msg_bot['id'] || msg_top['end'] <= vis_bot
call <SID>NM_add_remove_tags_on_screen(msg_top['start'], '-', advance_tags)
" if entire message fits on the screen, read/archive it, move to the next one
if msg_top['id'] != msg_bot['id'] || msg_top['end'] <= vis_bot
call <SID>NM_add_remove_tags_on_screen(msg_top['start'], '-', advance_tags)