I've been only using this about a month and a half. I have to say the featuremanger is very unstable. Almost got the paddles out today...lol Thing's are expanding when I don't want them to. All a sudden it will jump to the top. When I edit a part the featuremanger moves to it at the bottom, thought it was suppose to center it. When I change something in the edited part, another part will expand and the featuremanger jumps to it. I'm like WOW. Don't like the color of a part in error. When I edit a part it turns blue. Why can't the error part in the tree also turn blue? Overall I think I'm catching on fast but few things really bug me.....