Can two toolbars be placed end to end yet? (I dont recall being able to do so with GTK widgets in the past or with any of the applications i randomly tested with)
Maybe in the next version of GTK, not sure about the current one
Rather than trying to fit everything into a single standard toolbar (which if crowded wont fit on small displays) it would be better to have a few smaller logically organised toolbars (which wont look good on large displays unless they can be put end to end on the same row).
Agree, but this will need to wait for better toolbar management in GTK
An alternative approach might be to somehow add these features to the Zoom box that is permanently embedded in the status bar.
Already done, right-click it and you'll see the commands in the menu.