Dial Spinning
Did you ever try to make someone you know, think you did and end up with someone else entirely by accident? I use FaceGen a fair amount, but didn't have any adequate photo references of this friend of mine I'd known forever, so I used some Facebook shots. I spun and tweaked, spun and tweaked.
I'm still annoyed that there are morphs that don't exist, that I really want. Anyway, After I was satisfied I did a couple of renders. It was then I realized I'd made not a mediocre attempt at that friend, but a dead on accurate image of someone else I know who doesn't even resemble the original person.
Weird, but I'll take it.
I like having morphs of people I know, makes it more personal somehow.
Anyway, I think there need to needs to be a nose morph to shorten the length of the ridge. The only way I could shorten it at all was to flatten the face, which oddly was what achieved the look I didn't know I needed. And eyebrows, there are ways to adjust the line of them but they're all solid... not all people
and especially women have solid eyebrows. Often there are thin spots, or they are longer or shorter rather than all the same length. I could think of more, but that wasn't the point of my post.

Comments
How do you know there are morphs you want but don't exist? There are a lot for head and face morph packages. Also a lot of eyebrow packages, plus a number of skin builders that include eyebrows.
Some examples:
https://www.daz3d.com/rarestone-s-face-morphs-collection-for-genesis-8-female
https://www.daz3d.com/200-plus-head-face-morphs-for-genesis-3-female-s
https://www.daz3d.com/genesis-8-female-head-morph-resource-kit-3
https://www.daz3d.com/genesis-8-female-head-morph-resource-kit-2
https://www.daz3d.com/distinctive-hd-faces-and-bodies-for-genesis-3-female
https://www.daz3d.com/skin-builder-3-for-genesis-3-female-s
https://www.daz3d.com/brow-remover-for-daz-studio
There are some eyebrow modification items you can purchase to add some variety to your brows. You may also want to check into add on morph packs both here and elsewhere that may help you solve your other morph problems. I don't generally do morph dialling for realistic people so I can't really help much other than to give you some options lol.
Should I answer this in the form of a question? I'll take all of them for $$$ (Well, except for the Lyoness Faces and Bodies - I discount that as it isn't a morph package any more than any individual character is.). I own all of the items you listed save for the aforementioned Faces and Bodies because if a new morph package is released that modifies the face I'm all over it.
In fact I have a surfeit of morph options, a great many of which are virtually (Pun intended) duplicates of one another. But I get them all looking for my white whale morphs. Believe me, if the morphs I'm looking for existed I'd already own them. I've come to the regretable conclusion that I'm just going to have to learn to sculpt the things I'm really after since apparently
the types of things I'm looking for are not in great demand. And I have the eyebrow mods too, for IceDragonArt's suggestion.
One of my goals is to be able to make a Barbara Streisand type face - her nose is incredibly distinctive and yet impossible to morph with anything I've yet to use. Anne Hathaway's nose is like a mini-Barbara. Real, attractive people have noses like that and I'd like to be able to make those, not just shorten the length of the bridge.
But my original intent was not to bemoan the lack of things I crave but to marvel at the serendipity my Dialing resulted in.
The girl I was trying to model has a short nose - not stubby but her nasal ridge isn't that long. Now, it's true that there might be some ethnic nose that is intrinsically short, but these morph packages give you no idea of what to expect beforehand, no documentation.
A PDF of noses, mouths, etc... everything that gets altered at the maximum like a catalog would be an excellent resource and save massive amounts of time over dial sliding to see what the result is. Some effects are obvious by their name, but the ethnic morphs are far from it.
Ah I did not realize you already owned them all lol. Have you checked elsewhere as well?
I always enjoy when I get a really cool character after I have been working on something. And I frequently end up far away from where I intended to go. Some characters just demand to be made.
Oh, and are you going to post a picture? Would love to see what you did.
I hope you really can achieve what you want without going into Zbrush or polygonal modelling
There's the D-Former tool. That can be scaled down to focus on smaller areas. While not as intuitive as Poser's Morph Tool, it gets most (nose) jobs done.
You can rescale the zone of influence into more of a cylindrical shape as well, though it would be nice to have that as a specific option so the sides of the zone are straight and the ends are flat.
Intriguing, I had wondered if such a thing might be possible. I'll have to look into it. I guess I'll post a pic of what I ended up with from my dial spinning too, for curiosity's sake.
When I have a moment.
I have multiple merchant resource morph packs, and I was able to create a few celebrity look-alike morphs that have earned generally positive feedback. Although there was some custom morphing involved, the dial-and-tweak method alone easily dominated my technique. I believe that, with enough morphs, you can dial-spin a close semblance of pretty much anyone. Here's a couple of my face morphs. Who do they remind you of?


Look both a bit like the logo of the New England Patriots *duck&run*