This just struck me, and at a terribly late date for someone who makes a habit of looking for "ergonomic weaknesses" in software.
The tech tree has wheel-zoom functionality, but the Timeline tab of the Civilization Manager does not. Long-game players create Timeline curves that can look very different short-term vs. long-term, and after a few game years it takes many clicks to change persepctive between the full game and the last few months.
So I have two questions: 1) Would other folks find a change like this handy? and 2) If so, any idea whether this is a fairly simple code request or a big hairy mess not worth the bother?