Thanks for the feedback. Appreciate it.
1) You can now. Added into the version 2. Mouse wheel and/or "z" and "x" key. You're definitely right, though, it was sorely lacking.
2) I've currently got it as "left shift" in version 2, but that may change to a different key. One day, I may even implement user key-bindings, it's on the very long todo list.
3) Charts are also planned. I was planning a cities chart, I'll also add an armies chart based on your feedback.