Thanks for your feedback and great you like it! [:)]
As explained in the thread about the Textures Library Editor, note that until a new version of Sweet Home 3D is released, you should create small SH3T files rather than a big one if you don't want your SH3D files to grow too fast.
At least, programing this editor helped me to discover and fix that bug in Sweet Home 3D.

Maybe it might be a good idea to have the option to set dimensions as a default, like the default creator.

Nice idea, but you know you can already change a group of textures by selecting them then clicking on the Modify button.
Ouch, it's buggy. [:(]
Fixed! [:)]