EP 7.0 several questions regarding content- MSS and general

Hi

we have set up a 7.0 EP. Now I do have several questions where I have not found any answer in the SAP help:

If I copy an existing SAP iview how can I change then the target system?

How can I change the log on screen?

How can I implement another fonts then teh one used in the portal?

Thanks for any answer.

Best regards