thanks for your help, but it don't get the result I want. With
/prep7 csys,1 setran,Flansch_S,1,numnodes,test,sub,,0,100,0, fini
/clear /prep7 et,1,matrix50 se,test eplot
I get a superelement that is offset by 100mm in the Global Cartesian system (just as the docu says). Again, no rotation. Sorry if I am doing something stupid, but I don't see my mistake. I tried some variations with csys,1 before issuing the se-command or with csys,0 before the setran, but nothing works.