# 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

![](https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2FOCMBL21q7rv7P21eLgSE%2F0.jpeg?alt=media)

* 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

![](https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2F5ezxbzyWwKhqXlbKGcbM%2F1.jpeg?alt=media)

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

![](https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2FZSH2Qqsc7ezseb410cia%2F2.jpeg?alt=media)

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

![](https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2FnFGAlYDCoVt5g6zbZsXn%2F3.jpeg?alt=media)

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

![](https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2FUhwr37mttMjphIk4O5be%2F4.jpeg?alt=media)

* 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

![](https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2FLp9geSOp21jWWocWUIUL%2F5.jpeg?alt=media)

![](https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2FSBoJiKi9Rer1miUy0d5e%2F6.png?alt=media)