Disabled P4210 QBE fields

Hi,

I wanted to check, why are there many fields in P4210 grid QBE is disabled currently ? (Ex. Sold To Name, Ship To Name, UOM etc)

Also, can we enable it as per the user demand ? If yes, is there any implications of it in system (ex. performance issue, code changes required etc)?

I also would like to change if we upgrade in future or apply any JDE Esu, do we need to re-enable it ever time ?

Thanks,

Vishal