Go to their web site on select and have a look, you'll see there are loads of Microstation applications..
Where Bentley sucks is they are crap at promoting themselves and letting everyone know what they have.
select subscribers with only one seat of microstation can have loads of extra apps. I was using ustn for 5 years before I found out ( by accident) they had plant space designer for pipes etc 3d design and a special ustn version for electrical drawing drafting!
Take a look at modeller 3d graphics para solids etc for mechanical assemblies etc. But not as good as Solid egde by unigraphics for mech drawing/modelling this is superb.
Bentley missed out on $4M at my work to Intergraph to do GIS because we only had 20 liscences of ustn.. they didn't think it would be worth much to them I suppose. but the software anint the money its data capture to convert existing dgn formats.. we could have done it with Geographics but nobody at Bentley pushed the management hard sell enough like Intergraph did..