Thank you, VWD_dan. I forgot one important thing about Assistant (at least the cloth assistant) - I feel it needs the option of choice between CPU (so-called multi-thread and pure GPU simulating) before the "Simulate" button. From my experience, the cloth assistant tries to use GPU when simulating, so for me it fails too often ad sometimes freezes. I mean than this moment my 4-cored CPU hardware with built-in gpu is much better than the external GPU alone and so when I pick up Multithread simulating, all goes nicely even with complex cloth objects, but with GPU device simulation goes very slow or stops. The main VWD application has this choice, but the cloth assistant seemingly has not. Because I saw the same GPU-failing picture with cloth assitant, I think it would be very helping to include Multithread checkbox in this part of the application.