Yes, that's the StaffPad version that I'm talking about. It's a pure StaffPad rendition and says a lot about the app's limitations, which I don't think are going to get "fixed" by stripped-down third party libraries and limited ability to manipulate them.
I think you are a little confused about what Staffpad is actually for. It is not trying to replace or be a traditional DAW or engraving application.
It is a composition tool.
I like, like many, like to write on paper. (There's no way I can carry around all the different parts of the orchestra in my head.)
Then you would normally have the step of inputting the paper score into a DAW and then creating the mockup. Or you may then be then entering it into an engraving program for a beautifully prepared score. Staffpad reduces and simplifies these processes.
When I have got the music written into Staffpad, with very little effort (and sometimes no effort at all) I also have an often very good mockup, plus an XML file I can get into a DAW or Notation App if needs be. For someone like me who has a very busy working life, normally with a lot of travel, this means I can compose in airport lounges, restaurant tables, etc.
For a busy professional, I can imagine it could be a huge timesaver.
Staffpad is a composition tool. It is for writing music, testing ideas out with libraries that sound 'good enough' at worst, and are often quite impressive.
So whilst I won't be throwing away my copy of Cubase or Dorico, I spend far less time sitting behind a desk as I don't use them for composition anymore. Now they are more of a finishing tool.
I can now sit in the garden with an iPad and a cold beer, instead of being hunched over a desk. Seems remarkably civilised to me.
When I'm happy - I have an often more than serviceable mockup. If you want a full blown high quality audio mock-up - import into a DAW. Want a beautiful engraved score - into Dorico it goes.
(and I haven't even mentioned the live scores updates over Wifi)
That is what Staffpad is for, and it's very good at it indeed.
P.S.I have heard people say for them paper is much faster than Staffpad - well my experience is that isn't the case when I start deleting/editing stuff that doesn't work, or trying out different ideas to see which works. When that happens I end up with a paper avalanche. Perhaps, as a hobbyist Im am not skilled enough to get it right first time ! (The most common feature I am using in Staffpad is cut, copy and paste !)