Oh great! I log in to ask this question and it is already here

I have downloaded the plugin n extracted it. But the installation guide in the pdf file seems does not apply to Ubuntu OS.

My SH3D installation is very simple. I downloaded the 53.7mb file and than extract it. A new folder named SweetHome3D-4.0 appear. Inside this folder I click the SweetHome3D script file and the program start, and it been working fine.

Now the directory structure where the plugin folder is located is as this:-
SweetHome3D-4.0/jre1.6.0_43/plugin

The extracted RotateHomePlugin contain 2 folders named dist & src. I place these folders in the plugin folder, and restart SH3D.

And nothing happen, the two additional options are not showing in the Plan menu.

I must be doing something wrong. Need guidance please...

Thank you

Gan