Crystal Reports- Cache and Pre Calulation

Hi,

Caching:
1) What possibilities are there for caching/pre-calculation Crystal Reports.

2) What happens if you cache a BEx Query e.g. via Information Broadcaster. Will this work for Crystal Reports?

3) Is there some sort of pre-calculation for Crystal reports.

4) Does BO have it’s own cache? In what cases does that cash refresh?

Regards.

Vivek