Thank You...
TheRestOfTheFurnitureInTheRoomplugin.jar works. But the plugin about which I spoke I thought will be able count cubic meters of walls. Exist some such pluging to get m³ of wall?

<r>Of course, This is logic, that we have to unpack and place there the content of the package. Exactly this I made.<br/>
<br/>
But in the case of the plugin which I wanted to it is RAR.<br/>
[url=http://]<URL url="https://sourceforge.net/p/sweethome3d/plug-in...omputeRemainderVolume.rar"><LINK_TEXT ...

<r>Hello,<br/>
I downloaded SweetHome3D <B><s>[b]</s>Linux<e>[/b]</e></B> version, where it runs without installation (just unpack and launch SweetHome3D script)<br/>
The application it self runs without problem.<br/>
<br/>
As next step I wanted to add some the Plugin. <br/>
Here [url=http://]<URL ...