I am kind of new with Sweet Home 3D, but this forum has been a HUGE help so far. From the bottom of my heart, I thank all of you for sharing.
I am trying to design something and I need a single glass block object.
I very much like this object: http://www.sweethome3d.com/models/contributions/glassblock.zip

but I would like to combine different color glass blocks into a glass wall, so I only need one glass block from that object.

I tried to import that obj in AOI and Blender and to separate a single block from that, but I couldn't do what I wanted.
I also tried to manually edit the obj file, but no success.

Could you please help me?
Thank you in advance for your kind replies.