Doubts about Analysis for Office

Hi Dears

I have some doubts about the Analysis for Office

1) Is it possible to connect the Analysis for office in the universe? If no, for what reason?

2) What are the advantages to connect the Analysis for office in the BI Platform if the universes are not available?

3) I want to understand the option "Insert analysis vision" in the button "Insert data source".

When I select this option I have to inform the username and password from the BI plataform and the program show the BI Launch Pad directory structures, but any object is available to open.

Thank you,

Emerson