How to add button group to the header portion in ionic tab app

How can i add button group in ionic tab application in the header portion of one tab like below:

I’ve already checked and rechecked all documentation and the closest to putting components was putting a search text box in the header. Or you could put primary secondary or left right buttons in header. I couldn’t find any other components that could be put in header. I even checked the creator app that you have. That also doesn’t allow to add button group like above to be put in header section. Why is that so? The above button group functionality is very common in iOS and android applications. Is there any architectural reason why this can’t be achieved with ionic?