I have a requirement in cases. I have record type called VARMA, and we have a standard button called "Save & Edit" so, whenever support rep click this button we need to validate subject could not be null.
So, I created a custom button and I am able to display only record detail page, but I am unable to hide the standard button from record edit page.
And my custom button is working fine. Is there any possibility to hide or replace standard button with my custom button for this particular record type, other than VF page?