Adding additional fields for batch information

Adding additional fields for batch information

Hello, 

I am looking at adding additional information into our inventory module. we would like to be able to see up to 8 attributes that will be individual & different for each batch (i.e. batch specific information)  but currently I seem to only be able to amend information for the SKU which updates every batch as the same, rather than showing differences between each batch / lot. 

Hope this makes sense - has any one been able to achieve this?