Preload Items on Sales Order Using SuiteScript

Symptoms:
-The customer has hundreds of inventory items for sale, but most of the sales are concentrated on a few items.
-The customer would like to set up a Sales Order template, which, when it is used to create a new Sales Order with preloaded three items with zero quantities.

Answer:
The script should be deployed as client side script on record level or on form level to be triggered on pageInit. 

Sample:

function paageInit() {
nlapiSetCurrentLineItemValue('item', 'item', 5, true, true);
nlapiCommitLineItem('item');
nlapiSelectLineItem('item', 2);
nlapiSetCurrentLineItemValue('item', 'item', 6, true, true);
nlapiCommitLineItem('item');
nlapiSelectLineItem('item', 3);
nlapiSetCurrentLineItemValue('item', 'item', 6, true, true);
nlapiCommitLineItem('item');
}

Note:
The fifth parameter of nlapiSetCurrentLineItemValue should be set as true, which means synchronous mode.

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