Benttor, our wishlist for Vue 5 has already been established, voted and sent to e-onsoftware. And the "more undo" is already included. In Vue 4 Pro you have many undos:-) I have put 25 undos, it is individually configurable. To render Vue images faster don't forget to group objects, to use less lights and Water and other reflective material. read the User guide for the render problem. Guitta