I am not sure I understand how you mean that question, so I'll give an example:
Suppose you have a track that has the title I gave as an example a few posts back:
"Dido and Aeneas, Z. 626: Act II, Scene II. "Behold, upon my bending spear" (Aeneas, Dido)"
I would then want to copy the part "Dido and Aeneas" and past it into 'Work', and then copy the part "Act II, Scene II. "Behold, upon my bending spear" into 'Movement'.
That is a lot easier to do and decide on if all that information is available in one view without the need to switch back and forth.
And also note that the example I am giving here is named almost unrealistically correct.
Most titles you run into for classical music are a mess, and you'll have to do a lot of 'analyzing the title' to decide and know what to copy/paste.
I feel it would be a bad decision to not have these fields available together in one view.