Making walls smaller

[Danail]

Hello,
I met a problem that I cannot resolve it more than a week already. I have the following button, and I need to move the outside walls(in green) and not all the walls 0.2mm or maybe 0.3mm to inside the part and leave everything else untouched. I have in mind a few options for this - creating surfaces?? or moving faces?? Or something else? I dont know which one is the best. I really need some help here. Thank you,

 

[Cadasio]

What are you wanting to happen when you move the faces? your picking just a couple of faces of a tangential fillet so i cant imagine the move face will work that well for you?



Do you have access to all the features? In which case role back and change dimensions, if not, I would recommend at least trying to remove the fillets the make changes then add them back on