That would be about it, yes.
Basically I had seperate wire-colors for the kitchen-counter, the wall, the floor and so on, but I did not see them in the final wire-color render-element.
Sometimes we do minor color-corrections to certain elements in the picture, so it would also be good to get all the wire-colors, also the ones that are behind glass.
I mean, it is not very critical, because I could also delete the glass and just render the wirecolor to get all the masks literally in seconds, but I am still wondering if it is possible to get Wirecolors behind glass as well.