SAP NW BPC 7.5 Queries !!!

Hi Experts,

I am working on a SAP NW BPC 7.5 project . I have few Queries related to it :--

1. Suppose every day delta records are coming in BI Infocubes and now we want to load delta records monthly into BPC infocubes. How do we achieve that in BPC ?

2. Actual Vs Plan reporting has to be done in BPC infocubes or a multiprovider needs to be created?

3. Is navigational attributes supported in NW BPC ?

4. Is it recommended to schedule a process chain daily in NW BPC?

Thanks & Regards,

Montz