@alvon: not the animation is the problem, but the incredible slowness of the animation window, that needs several minutes to copy or move keyframes! @operaguy: i will not make promises, because we work on this software not fulltime, but part-time only. As i wanted to see P6 before investing more time in a (maybe) unnecessary program, the development stopped for some time, but now i know, i can go on. I think, beta-testing can begin in summer; i will inform people here, when it is time.