Dear ALPS users, I have two questions regarding DMRG application of ALPS; 1. is it possible to define imaginary operators in this new version? in the simplest case I tried for operator like Sy=1/(2*I)(S+-S-) and it seems doesn't recognise I, how should i define the imaginary part? 2. I am interested to calculate correlations like <O1O2O3> in which O's are local operators and they could be also imaginary like Sy in (<Sx(i)Sy(j)Sz(k)>? I know at the moment just correlations like <O1O2> are calculable, but I would like to know is it easy to implement the above mentioned problem or is there a kind of trick to do it?