I believe you would have to open SOW in UI Builder then figure out which page it is. Then you would have to create a variant of that page. I'm not sure it is work it just to rename the tabs. When you create a variant if ServiceNow does an enhancement of that page you will not get it. So the question comes down to why you want to rename the tabs. Is it worth the cost have having to create a new variant from the original page every time ServiceNow make an enchantment.
