Are these hacks possible? (Changing search / home screen defaults.)

Hello all! I have finally patched my Kobo H20, and all is great, but I would really like to know if these two hacks are possible. I couldn't find them in the list.

1) Is it possible to change the search option so that it defaults to searching your own files, rather than the Kobo server?

2) Can I get rid of the Kobo advertising button on the top right hand corner of the home screen? The one showing 'New Reads!'. I'd much rather have one of my own collections there.

Thank you!