Here's another what annoyed me today thread... I'm currently trawling through some CAD data that got sent to us by a consultancy. Since we've had the work done, we need to change the size of the components, but i'm now faced with picking through the history tree and deciphering the thought process that went into designing these parts so I don't screw anything vital up! Just an observation - isn't it weird that no two people will design something in the same way, and is there anything more frustrating that trying to think like another person when editing their work!? Tempted to start it again and do it my way! That is all! P.