Can the multi-use artilleries have different type of shells ?
 

I tried to make a ship sunk by coastal artillery from both nations.
it appear that all heavy calibers like 88mm,94mm,6 pounders can't switch by themselves from AA shells to AP/HE Shells, then all i see is big bursts clouds around the ship.
Is that manually switchable, simply a bug or isn't in the game yet ?