I have sandbox where community is enabled, and Case tab added to the community. When we click on Case tab list of Cases getting displayed and also a button on top with name 'Create New Case'. My question is can i hide this button or rename it or remove it from Community?
My question is why do you want to do this. If you have a group of users that you do not want creating Cases, then why not just restrict them to view access, and not give them create access?
So why not just modify the profile for the group of community members so they don't have create access on the case, which will solve the issue as they will no longer see the 'New' button as they don't have the permissions to do so.