Add product page

Hello,

I would like to modify the “add product page”
1. Hide checkbox “virtual” and “downloadable”
2. Hide sales price and planification
3. Hide add a media

4. Furthermore, I would like to simplifiy the fill in of the form for the sellers, because for the moment, the seller is lost, he doesn’t know what to fill in. I would like to display only the fields he has to fill in :
First option : the seller choose the category and then the corresponding attributes appear on the screen. For the moment, all my attributes are displayed (with plugin woof category – defaut attributes)
Second option but not very well : It consists to add text on the page. The seller can view easily the attributes to fill in because I add the category name :
Add text “Category 1” and below
Attributes 1 à n dipslayed
Add text “Category 2” and below
Attributes 1 à n displayed
NB : I have 3 categories and 11 attributes.

Images of my screen attached

Thanks a lot.
Regards
Aurelien