While Warren porter’s tip about tuplets works practically, how does one add the necessary figure to the group, say a group of sevens? And how does one get the other parts to vertically align to it?
It's nice to know people read those tips <g>. Under "Page Setup" (open book icon), click on the "Fonts" tab. Change an unused user font to be both Bold and Italic. At your septuplet create a text "7" before the middle note and, under "Expression Placement" choose "at next note/bar". Don't select "Preserve Width".
The "7" will take some space on your screen, i.e., some extra space will appear where you inserted it but that will practically disappear in a print preview or a real print.
If that doesn't work, feel free to send me your file.
...an unused user font...
Why not just use Staff Italic? That's what the "3" in a triplet uses.
...an unused user font...
I always use all six, by the way, so there ain't no such thang...
babies are so cute and i hope the advise helps