I have Toolbox set up to make a copy of each part onto a network drive, so that we can all us the same definitions. This works fine. If I add a part from the Toolbox that has already been created, it asks if I would like to use the existing part - also fine, although I'd prefer it to do this automatically. What I tried today (only recently noticed the command) was swapping a fastener for one of a different length by right-clicking on it and selecting "edit toolbox definition". "Great" I thought, this will save me creating the different length fastener and then doing a "replace component" in the assembly. But what SWX actually does is to make a new configuration of the fastener, despite using the option to create all items as unique copied files! What a load of crap. To be fair, it warned me it would do this, although I thought/hoped that it would then check its system settings and actually make a copy, but no such luck. Anyone else encountered this before? regards, John H