Answer:
If the projects or individual components of a model resemble each other, it is reasonable to parameterize the model or the components. It is also possible to use formulas for the individual "parameters". If a parameter in the respective formula is changed, the model is adjusted in the background.
There are diverse variables available for the parameters, such as cross-sections, loads, angles, lengths, and surface thicknesses.
Under Downloads below, you can find an example file with the parameterized model of a simple structure.