New Post: default category with tree view

Hi,

I am also interested in this. On a particular page I would like to show a selected tree of categories and not her peers (which would be shown on other pages). E,g. I have catA, catB, catC, all on the same level, but when I set the category view model to default catA all the others are also visibile. How can I achieve that, please?

Thanks

Franco