afb0573c_ibutes___Tekla_User_Assistance__Can_be_used___
[Attribute] Shorten [Can be used...] 
When drawings of the parts are created, Tekla Structures decreases the true length of the part by this value. This is useful when creating assembly drawings of bracing bars that should always be under tension.
User-defined attributes | Tekla User Assistance
Can be used...