How do I integrate the Witbox 2 into Cura version 5?

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Hello

I installed one of the latest (or last) version of Cura (5.2.1) on my windows 10 PC. 

It no longer generates a .stl file, so my 3D printer (Witbox 2) no longer recognizes them.

How do I "enter" the Witbox 2 in the database of machines available on Cura?

Thanks in advance

Damien F