Automatic selection document type

On my web site I have two Flexicontent categories, each with a different document type assigned to each category. If I add a post from the front when I click "add new", the document type selection first appears, and then the form with the corresponding fields appears first, and the category is already set by default. The necessity of setting each time a document type causes a considerable lengthening of the process of adding entries, especially since I have a lot of them. Is there a way to hack that would make it possible to default to selecting a document type relative to a category. When I click "add" while in category A, the "Category A" (now) and Document type A form will appear with the corresponding fields assigned to it. When I am in Category B, Document Type B appears and the corresponding fields. Without having to choose.

Hello

you missed it

you can select submit menu in the configuration of every category
So
1. Create submit menu items, and in them set the desired type
2. In every category configuration select the appropriate sumbit menu item