When connected to an IFC datafile, it will appear at the bottom of the main dRofus window and will show which type it is. You can always its type. To prevent editing of the attached IFC, it is important to disconnect by selecting from the menu dRofusmenu dRofus-> Room-> BIM → IFC → Close IFC fileRofus-> Room-> BIM → Model connection IFC → Close IFC file . 
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