You can try using custom css. Add following in your style.css and in your div use subheader2 class. Please note each row height is 44px. So you can multiply with number of rows in your custom css.
You could use a tabs section at the top and a button bar below that. As each tab has its own view section, they can have their individual button bars. Uploaded a screenshot as an example.
However, I am considering refactoring it as it occupies significant screen space at the top. The other issue is the tabbed bar will move to the bottom in the ios app and the bar-button will stay put at the top. I am not sure that’s a good idea.
I stumbled upon this image while looking for a solution to my problem. I have a header bar then the tabs below it and in one of the tabs I again want a header row with title and buttons. Below that I have ion-content where the content is scroll-able. I can get header and tabs fixed(non scrollable) but struggling with getting another fixed row under tab.
Is your button bar under tab fixed? If so can you please share how you achieved it?