Cool
That's what I was looking for
Thanks a lot Juani

Thanks a lot for your help.
I'm following your tutorial in Youtube.
It's very useful to me.

Thank you for your answer.
Yes I am.
I did it but I need some more tutorial about it.
I'm new in Blender and Blend4web so some part of codes is not clear to me.
I have no idea about morph.blend file so I can not understand some parameters like "key_name" , slider structure ,… . where does it come from?

Could you please guide me how to have a tutorial about morphing project sample. I googled it but I found nothing.

Great! Thanks again.

Thank you so much for great tutorial. I got this error when I run html file.

Uncaught Error: Module "__tbn" not found
    at b4w.js:201
    at b4w.module.__util (util.js:31)
    at b4w.js:208
    at b4w.module.__tsr (tsr.js:29)
    at b4w.js:208
    at b4w.module.__boundings (boundings.js:27)
    at b4w.js:208
    at b4w.module.__batch (batch.js:27)
    at b4w.js:208
    at b4w.module.__anchors (anchors.js:27)
b4w.js:201 Uncaught Error: Module "__tbn" not found
    at b4w.js:201
    at b4w.module.__util (util.js:31)
    at b4w.js:208
    at b4w.module.__tsr (tsr.js:29)
    at b4w.js:208
    at b4w.module.__boundings (boundings.js:27)
    at b4w.js:208
    at b4w.module.__camera (camera.js:28)
    at b4w.js:208
    at b4w.module.camera (camera.js:50)
b4w.js:201 Uncaught Error: Module "__tbn" not found
    at b4w.js:201
    at b4w.module.__util (util.js:31)
    at b4w.js:208
    at b4w.module.__tsr (tsr.js:29)
    at b4w.js:208
    at b4w.module.__boundings (boundings.js:27)
    at b4w.js:208
    at b4w.module.__camera (camera.js:28)
    at b4w.js:208
    at b4w.module.camera (camera.js:50)