[Modify Sales Order lines - Like in saved-search Edit mode] Aim: Add button Mark All & Unmark All in my saved-search preview to select/deselect line. Add a custom to update SO line selected by changing trandate field. What I tried: It seems it is not possible to add buttons or modify the layout of the saved-search results. Alternative: Can this scenario be achieved by using a suitelet ? I will add my sublist to get all SO lines and add the required button.