Toolbox related Q

Hi all,

I really like how when you import, say, a bolt from the toolbox SW asks you to configure it: length, diameter, etc. There are some parts I make that are very similar to each other, and currently I am making each one independantly. It would be great if  I could make a generic one and be prompted to configure it when inserted in an assembly, like what happens when I insert a bolt.

I suspect this is somewhat non-trivial, so im not asking how to do it, but rather, if you could point me in the right direction as to where I should start to accomplish this I will be very greateful.

Thanks!

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