Geometry
Suppose a structure consisting of a number of identical frames. For example, copy the truss that you have just defined on the basis of the icon 
in the toolbar. Indicate that it is a repetitive structure.
The left bottom shows a frame indicating the number of structures and the distance between them. After double clicking this box, a dialog will appear where you can modify the data.
Loads
Currently no loads are defined. Therefore, select the beams of the truss and click on the icon 
. We note that the loads are now expressed in kN/m/m. Place a horizontal distributed load of 2kN/m/m.
1•2•Build automatically calculates the load per running meter in the direction of the beams of the frame. The load shall accordingly be multiplied by the distance between the rafters. This means that you design the porches if they were all in the middle of the structure. This is acceptable if it is remembered that all the frames are carried out with the same dimensions in practice. If you wish to take into account that the frames on the edge only support half of the load, than divide the distance between the rafters by two.
