Why can't you make configuration for different lengths?
In case you need them as multibody then, have you tried linear/circular pattern n pick the option vary dimension.
That is good idea Deepak, thank you again.
I am just very new to SolidWorks and I do alot of things wrong way .
I just thought it could be possible to convert a copied or mirrored object to a stand alone feature( like it has been redrawn)