Experts,
I have a requirement where I have to insert a new custom push button along the line of push buttons located on the main screen of transactions VA01/VA02/VA03 after the items table control i.e. I would like to add a new small custom push button next to the standard push buttons like Item details, 
create item, 
delete item, position item, select all, deselect all, check item availability, display availability, schedule line items and conditions etc push buttons.
Please kindly share your experiences with this requirement.
Regards,
Kalikonda.