How to remove buttons from a selection-screen as window.

Hello SAPients.

I'm using CALL SELECTION-SCREEN 100 STARTING AT 10 10 to call a previously created selection-screen. The window shows 4 buttons: Execute, Check input, Save as variant and Cancel. The user is asking to remove the Check input and Save as variant buttons. Is that possible? I've been searching and I can't find a way to remove those 2 buttons.

Thank you in advance for your help.