Online PBS Dependent extension documents needed

All

I filled in the online application for my wife's dependent visa applciation (I am on British passport via Tier 1 ). The summary only asks for the bank statements for the maintenance funds. Can someone confirm do we need to submit additional documents like the address proof, marriage certificate and my British passport?

Thanks in advance.

Hi

I have now applied for the extension for my wife with the necessary documents. My wife qualifies for ILR by 4th October (Entry date 01-Nov-2012). I got the biometrics letter dated 21st August. Would it be better to delay biometrics to improve the chances to qualify for ILR? I have seen in this forum that UKVI sends a second letter if biometrics are not provided.

Any advice is hugely appreciated.

Thanks