1- When defining the steel column-truss joints, delete the union by connecting the truss subhead and the last strut and diagonal. Select the butt plate truss combination. Turn off fast mode. Quick mode is located on the far right in the fusion toolbar, in orange it is active. If you click on it once, it will close. Then first select the column, right click, then select the scissors subtitle and diagonal and right click. For example, the ones in the front section have been entered. The program does not close. 2- Use the support combination for the reinforced concrete column - truss sub-head. In this, when the fast mode is turned off, first select the reinforced concrete column and then the truss subheading. This way, there is no breakage. When fast mode is active, the program is sensitive to mouse movement, you may be defining an incorrect combination and you may not notice it. Modeling should be done with this sensitivity in mind when using the fast mode. 3- Steel beam in one piece along all columns. It was divided for each interval and its elevations were arranged to transfer loads through columns. As an example, a single slip plate joint is entered only in the first range. This combination also comes in a way to carry the load as much as the capacity of the beam to which it is attached. So the design is ready. 4- Of course, if these beams are to be hinged in this way, you must use a vertical cross in the relevant direction. 5- Check the cross sections. It is important to take the reversible moment effects while using low cross section. We recommend a HEA section.