I have an trouble with this plugin. Any advise ?

• My system : Windows 10 / SketchUp Pro 2017
  I was install both of Camera Key Maker and Bezier Line but this plugin doesn't working with me.
  I already saw Camera Key Maker in Tab " Camera " but when i click on that nothing was happen.
  Anybody have the solutions for my situation ? Thanks all and I am sorry if my English not good enough to explain in detail.