Well I can help you with some of that with my righteously ripped-off
Trigger Maru Keyboard Layout. This gives you a very SH3-like keyboard layout, plus shift-i for "whatever officer does this in American U-Boats identify target."
I'm wondering what kind of different plotting tools you could be talking about. I guess it's been too long, but I remember the GWX plotting tools being the same as SH4. You aren't talking about OLC GUI are you? That too will come, grasshopper.
You can get speed and course (sort of. Beware of inaccurate results due to stadimeter follies) by taking two range/bearing sights and then switching to TDC speed view and stabbing the stopwatch button. It will then give you target speed and course, subject to the accuracy of your sights. For a variety of reasons the stadimeter is none too accurate, although it is quite a bit better than real life results.
Weather report with the above keyboard layout is ctrl-w. I believe range at speed is available too but I never have to use it. You'll have to ask Ducimus, who I stole it from.
And clickable officers and gauges went by the wayside with SH4 to make way for the new eyecandy and other goodies. Our computers can only do so much without detonation. We can't quite have it all yet.
Welcome to the SH4 side of Subsim, where all our refrigerator magnets have been demagnetized. Have a drink and stay awhile!