Also, arronblood, all the keyboard commands were switched around with the unfortunate consequence that the attack screen is no longer a keystroke away. Fortunately, if you don't want to have Trigger Maru aboard, which fixes the situation, you can download my
Trigger Maru Keyboard layout, which has an added command, shift-i for "whoever does such a thing identify target." It's similar to the SH3 layout, while making allowances for the changes in SH4.
Enjoy, but give time for the adjustment to the new boat. It is not a U-Boat. I would MUCH rather evade ashcans with a fleet boat than a U-Boat. And don't expect SH4 to be so superior that you will hate SH3. SH3 stands up very well. I consider them co-equals.