PFCG - How to disable button in FV50

Hi Expert,

I have scenario as follows. I have a simple test role, and would like to have Tcode: FV50 (park document) and F-32 (clear customer) in the same role.

When I have only Tcode: FV50 in my role, I do not have <post> button when I execute Tcode: FV50. But, when I have both Tcodes inside my role, FV50 has <post> button, and user can click on the <post> button to post directly.

Therefore, in order to have both Tcodes inside same role, I would like to disable the <post> button in my FV50.

Question: How can I disable this <post> button of Tcode: FV50?

Thanks and regards,

sbmel