SAP PA 61 Authorisation

Hi All,

I need advice on the following :

I have two different users (User A and User B) that are currently using a standard screen PA 30

The diffrent between these two users are User A have full authorisation access to do the transaction.

Meanwhile user B is only allow to create leave for their cost center only.

Because we are not using a standard screen, we implemented PA61 where by user B will allow to create the staff leave according to given cost center

However during implementation, I identified that user can change and delete.

Is there a way in a standard screen to deactivate this two icon header such as change or delete

If this is impossible can authorisation level help to allow user to only create leaves

Some one help me

Thank you

or delete

in the header document or is there an authorization level where only
the second user only can create the document.