Hi Martin,
Thanks for your reply,
The requirement is,

In the On-Hand list, select any of the item number and then select dimensions in the action pain, the users will select site, warehouse, batch number.
After that in the form it will show related information of the item, beside of the batch number, i need to add a column named as transport id.
The user also need to see from which transport id the item is present. The transport id is a custom field which is not present in inventBatch, inventSum, inventDim and inventTable.
The transport id has a reference with itemid, batch id and purchase order. purchase orders because they will buy the items.
By using display method i can get the information of transport id for that item but we cannot filter that field.
So to do the filter of that transport column which way i need to follow?
with regards,
srihari.