Hello Anton

Yes, !Artworks can 'multiple rotate' in the 2004 RiscOS version I have.
Each object rotates around its own centre (or corner) - very useful on many occasions.
It can also 'multiple scale' where each object scales about its centre (or corner), rather than as a whole group.

So if it was possible then......

(Well done to Martin Wuerthner who continued to develop Artworks)
How about it Xara?!

Cheers
Steve