BOM Issue

Hi

Any one can guide me guys.

1) Is it able to see exactly where a particular part is used in a BOM?

2) In BOM is it possible to see a current Stock of components ?

3) Is it possible to change the BOM part When Stock quantity reaches zero [i.e that part quantity] ?

4) Is it possible to plan through BOM's to find part numbers, link directly through to CAD drawings, data sheets and Supplier info.

with regards,

Madhan