Create tree with tabs

Hi

Im trying to learn ui5 tree and tabs how this works together , currently thanks to Kai

we have the following

http://embed.plnkr.co/l9qC5vomjIZmVMCuBkTG/preview

I need to add the following

1. is there a way to put two button(which open alert) instead the text "Tree with header"

2.Can I add two  text field above the tab strip like constant I mean the first is parallel to the "tree with header" and second is parallel to the tree1

3. Can I add another two button(which open alert) like the okay button ?not sure if this Ok is related to the view but if not above it

Thanks!