In some of my designs there are objects I need that are difficult to create in AC especially when using Param O. It is simpler for me to create the object using my MCAD software and saving it as a .3ds file. I then import the .3ds file and which converts it to a GDL object. The system works fine and selecting those items in 3D is easy. Unfortunately the same is not true in the 2D window. In order to select one of these objects it requires putting the cursor at the exact center of the object and not anywhere within the boundaries of the item unlike slabs and walls. Does anyone know the reasion for this?