Having error with manuel bastioni lab tool

I am having an issue with Manuel Bastioni Lab tool . The options that are supposed to appear are not appearing along with the tools I am only able to select the type of figure and it does not produce any other options. Can anybody help Please ? Thanks.

Hello O_Parker ,Which version of Blender tool are you using ?

I am using blender version 2.75

Yes it worked thanks

Well I won’t consider this as a bug fix but try using blender 2.77 . I think the error will not appear again.