Great work!
Can you please prepare a beta version so we can test it out and give you our feedback?
It looks like just the kind of thing I've been wanting for ages, no more having to F6 everytime I want to adjust my torpedo settings, F5 back to periscope, F6 to tweak the settings some more, F5 back to periscope.. you get the idea!
Being able to do it all on one screen will be excellent particularly for times where you only have a few seconds to tee up the shot.