how to rotate the ship to place stuff underneath it
Well this is embarrassing....
I've played GalCiv 2 & 3 for years, but not for sometime. I seem to have forgotten how to design new ships.
I can get to the design page ok and I've got a new engine on my mouse, but how in the heck do I rotate the ship so I can place the part at the back/underneath? I've done this a million time before but right now I'm clueless 
Sorry for this really stupid question. I've checked the manual and the wiki but not getting the info I'm after.
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(I'm using the legacy 2.3.3 version of GC3)