Answer:
In principle, you can select the IFC elements graphically. If you open the shortcut menu (by right-clicking the mouse button), you can decide for each element whether you want to convert it to a member, a surface, or a solid.
To convert the IFC elements into the Dlubal elements (such as the Dlubal cross-sections), the required information must be available. It is necessary to check the following aspects for this.
1. Assigning Dlubal Names in Conversion Table
In the CAD/BIM menu bar, you can access the information of the respective IFC objects by using the conversion tables. The information imported from the IFC file is displayed in the first table column. These successfully imported material and cross-section names are clearly assigned to the IFC objects. For the conversion, it is necessary to assign the Dlubal names to these external material and cross-section names accordingly in the table. You can select the Dlubal names from the material and cross-section library.
If the IFC objects are converted to RFEM objects, the defined conversion is taken from the conversion tables.
2. Impossible to Read out Cross-Section Names from IFC File
In the case of some imported IFC files, no imported cross-sections are displayed in the conversion table. The table column of the external cross-sections is empty. However, a cross-section name is visible in the properties of the IFC elements. This means that the information on the cross-section is available in the IFC file, but it cannot be read by RFEM, as the information is saved somewhere else within the IFC.
In order to add the storage location of the material or cross-section name retroactively, you can add a new entry from the IFC properties to the conversion table.
You can now perform the conversion according to Point 1.