Hello
As you can see in the image above, I can't change the settings. I need to export a WWTP assembly so that when the WWTP is reopened it becomes a part composed of volume bodies.
Do you have a solution?
Thank you in advance.
I confirm this menu (import by the way not export 
) should not be locked.
On my version no problem.
Administrative lockdown perhaps? For my part, I have never encountered this problem.
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Check 3d interconnect then ok then go back to the options check your box then uncheck 3d interconnect
Flawless! Thank you very much.