Can you use the Support of [One Group] (Water) Advantage to get access to a Different School?

For example a Yasuki Makoto was born with an exceptional talent for Iaijutsu. His family stands in good favor with the Kakita Family and by pulling some favors he was arranged to assist to the famous Kakita Duelist School. Can I use Support of [Kakita Family] (Water) in order to assist to a different school?

No need... the book says, on p.33,

Quote

In most cases, a samurai is limited to the schools within their clan. If you wish for your character to study at another school, ask your GM’s permission and work out a set of circumstances that have allowed for your character to study at another school.

Support of that scool would certainly fill my expectations for such circumstances, but go beyond, as well; that school still likes you and holds you in esteem.

Thanks! This simplified things as I don’t have to spend a precious advantage on this. I will highlight this in my Beta.