Get JCO destination information.

Hi,

I want to create an administrate report .

The report will be able to show me the following details :

1. How many RFC connection currently in used .

2. How many specific JCO destination in used .

3. How many users use specific application .

(after navigate/close browser/log off.....the application no longer will be counted ).

Is there any way to do it??

Thanks.