# Modify Roof/Floor Truss Type Parameters

* Main truss type parameters are under Structural Group
* Software controls all type parameters marked in red
* User must control type parameters marked in green

![](/files/ImEEOZjUsqlxTjNCMyfP)

* Parameter VW\_O (Vertical Web Offset) predefines an offset distance for vertical webs when truss ends are supported by other trusses
* Software installation includes trusses with VW\_O distance equal to zero

![](/files/O7wzHTKVbk0LQZHj7yWP)

* User can change value of type parameter VW\_O at any time

![](/files/kLUZfFLbUxcDmjMVKe6D)

* Type parameter Min Diagonal Web Angle predefines minimal angle of diagonal webs at the ends of truss

![](/files/FrmfiaPvEu8Hkmxm8NLZ)

* It is easy to modify roof/floor truss type parameters with the function **Modify Roof/Floor Truss Type Parameters**

![](/files/Y0iaTHBfwd97Cq4AsJ9n)

* Configure Grouping function allows grouping trusses by family or type
* Select Parameters function allows finding and selecting required parameters
* Yellow color shows selected grouping parameters
* Green color shows trusses that are used in project
* White color shows that truss types are not used in project
* Gray color shows trusses that don’t have selected parameter
* User can select all column and change value of parameter in one click

![](/files/LnNXg9l42Sy36NG99R9p)

![](/files/MqjqbZj4AFN2meQHZUcH)


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