The Hugin UI is in tension right now, pulled between the extremes of
usability, functionality and target audience. One usability/target
audience extreme is "fast and simple" fostered by smartphone/P&S camera
pano functions - tap pano button, shoot frames with phone showing you
preview image to guide you in overlapping and aligning, tap make pano
button, show your finished pano to your admiring friends. Another
extreme is the professional/expert user that (1) wants detailed control
over every element and (2) isn't shooting their images guided by a
smartphone/camera.
I could have sworn, though, that if I changed something on one tab or
the Assistant, the change was reflected in the corresponding spots on
other tabs. Do you have something specific where that's not happening?
Interesting thing about Hugin 2013 I've observed on my 1920x1080
displays here. It leaves quite a bit of screen area unused.
Sometimes I think the current trend in computer GUI design, driven by
the raving popularity of phone and tablets where you have only the
clumsy broad brush of a fingertip to work with, is a big mistake. The
usage environments are very different. A number of websites are like
that these days. They give me a page full of enormous buttons on my 22"
LCD, wasting space and forcing me to scroll, scroll, scroll to see more.
That's a good design principle for a small screen device like a phone or
a tablet. It's a bad idea on a real computer screen.
I still hope to someday see a Hugin UI that is the Fast/GL Preview
window, with a menu bar and functions corresponding to what it offers
now was tabs - and the ability to access context-specific functionality
by right-clicking appropriate spots in the window. But I like graphic
apps with minimalistic GUIs, see Targa TIPS (Targa Image Processing
System) as I've mentioned below.