add the ERP Number to the result Grid of the advanced search when searching for Items versions

[anajjar8F7B6]

add the ERP Number to the result Grid of the search when searching for Items versions in the advanced Search.

Use Case

Currently if we search for example for all items that have a Manufacturer Item Description containing a value.

the result Grid does not contain ERP Number as a result.

this cant be added as an available Field.

the result Grid and the available Fields should be more flexible and admin should be able to add fields to the result Grid.

[mwaxenberger]

Hope this will be a generel solution. not just for the ERP Number. 
If I serch for any Atribute (= is not null ) than i want this atribute in the grit.