We recently had a requirement that the button sizes in OBIEE had to be increased. The reasoning was that the users of some of these reports are old and they hate smaller sized buttons. Now we know the properties of buttons such as the size are set in the css files which together form the skin. While it is possible to copy the skin and then edit the desired property, it is a long process.
This blog talks about a shortcut to achieve the objective.
Users often have the requirement to have the selected prompt values suffixed to the name of the exported file.
This blog talks about a hack to achieve this in OBIEE.