The program fails to calculate the real size available, most likely because it fails to recognize the dpi, perhaps on a high dpi display. There is a custom setting which allows to override the default scaling, see this post and experiment different values until you get the expected result:
https ...

Does it happen for a specific file or with any file?
If you can share the file I can try to upload it using my account, if it works for me then it means something is corrupted with your account (in which case spacemushrooms will have to analyze the problem), if it doesn't work even for me then it ...

Thank you, but I will be out of the scene for a while. There is no hurry, but if you want to try you may look at how the roof generator works, it's a very good example to see how to transfer a model generated using a general purpose algorithm into sh3d.

Very nice tool! Do you plan to convert it into a plugin?

Quoting myself:

I know there are bugs using the plugin with the latest versions of SweetHome3D. I haven't had the time to fix them, so the only chance is to use the native dimension lines, or downgrade SweetHome3D to a previous version (7.0 should work fine).
Keep in mind that native dimension ...

I guess you feel the box moving because the camera is following the box wherever you place it. This is always the case if you have the "camera centered on selection" enabled in the settings and you have the box selected, but will also happen if the box is the only object in the scene, because the ...

The "Hide obstacles in the 3D view" feature is shown here:
https://youtu.be/FrnDfMOdtPY?si=s8LQck2WY0Xi1ifD&t=29

There is also an advanced mode that allows to hide all objects behind a given polyline, it is shown here (this video has been made with an old version of the plugin, newer versions work ...

Non c'è un installer specifico per chromebook, ma forse potrebbe andar bene quello per Linux.

Se non funziona puoi provare ad installare java (versione 11 o 8), e poi scaricare e lanciare la versione jar.

Se nessuna delle precedenti funziona ti resta sempre l'editor online (il secondo pulsante ...

Also, having Pan3dView plugin without the additional options could mean that you have an old version of the plugin, which could have bugs.