To Open many reports on a single click button, write code on click button
str _menuItemOutputStr;
Args args = new Args();
Args args1 = new Args();
Args args2 = new Args();
Args args3 = new Args();
Args args4 = new Args();
MenuFunction menuFuction;
args.record(PurchProforma);
args1.record(PurchProforma);
args2.record(PurchProforma);
args3.record(PurchProforma);
args4.record(PurchProforma);
new MenuFunction(menuitemoutputstr(_ExProforma_Purch1),MenuItemType::Output).run(args);
new MenuFunction(menuitemoutputstr(_ExProforma_Purch1Duplicate),MenuItemType::Output).run(args1);
New MenuFunction(menuitemoutputstr(_ExProforma_Purch1Triplicate),MenuItemType::Output).run(args2);
new MenuFunction(menuitemoutputstr(_ExProforma_Purch1GateCopy),MenuItemType::Output).run(args3);
new MenuFunction(menuitemoutputstr(_ExProforma_Purch1ExtraCopy),MenuItemType::Output).run(args4);
super();