Solved. .eteks was created automaticaclly during installation at location: ~/snap/sweethome3d-homedesign/15/.eteks/sweethome3d/

Last resort is uninstall and re-install it using the guide you suggested. Before doing that, i was wondering: where should .eteks folder have been created? I checked /tmp and /opt but it seems I find nothing.

<r>Hello, I installed in Ubuntu Sweet home 3d Version 6.6a through Software catalog.<br/>
<br/>
Then, under home folder, I created:<br/>
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a folder called .eteks<br/>
a subfolder called sweethome3d<br/>
a subfolder called plugins<br/>
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I donwloaded this plugin <URL url="https://sourceforge ...

<r>Hello, is there any feature that allows me to drag the 3D model of the house you've realized? At the moment, to my knowledge, I can only zoom in and out and rotate the model.<IMG src="https://ibb.co/BwbqX2T"><s>[img]</s><URL url="https://ibb.co/BwbqX2T">https://ibb.co/BwbqX2T</URL><e>[/img]</e ...