@Kasic: They're all possible. The one you're talking about is very easy. Just hit that big upright beam near the top; it'll fall over and hit the springboard like a Rube Goldberg machine.
Did anyone else notice you're using guided arrows? You can shoot at one side of the screen, jerk your mouse over to the other side, and the arrow will follow. With tech like that why do you even need to practice?
This is the beginning of a really great game- almost like a naval Risk, with more complexity- but it needs a lot of fine-tuning before it gets there. The random events, for example (storms/pirates) don't add much. They just happen and make you lose ships, which is more annoying than depth-adding. Likewise the treasure hunting; it's not much more than an occasional bit of extra gold, since they don't appear often and they're not very challenging to solve. The diplomacy is pretty simplistic; I had Spain make peace with and declare war on me in the span of one turn, for no apparent reason. The combat AI isn't great either, with AIs sending single-sloop 'fleets' against ports defended by five ships and a fortress. Aside from that, the game is pretty bare-bones, but I know it can be really awesome if there's more things to do and better mechanics.
I like how you can max out your people's stats in all fields. So you could take tkettle's advice, but do it with five Renaissance Men instead of five specialists.
Well, the arrow is "guided" as long as it is notched in your bow sure, but once it's fired it no longer follow you (hopefully) :p