create a structure from an isodose

Dear all,
I would like from a dose matrix to create a structure containing the isodose of my choice. Not having found the solution to my problem, I therefore refer to you. maybe you would have a solution to create a structure from an isodose.

In advance, thank you for your answer

Isodose module generates a model. You can convert the model to a segment in an existing segmentation by drag-and-dropping the model into the segmentation in Data module. Alternatively, you can right-click on the model node in Data module and choose convert to segmentation.