NetSuite provides an auto suggest function for lists, including multi-select lists. As user types three letters or more, a list of suggested matching records displays. User can select from this list to quickly populate the field.
To enable this preference:
1. Navigate to Home > Set Preferences.
2. Under Analytics tab, mark the Popup Auto Suggest checkbox under Search section.
3. Click Save.
Note: Auto Suggest only works for fields when:
a. Maximum Entries in Dropdowns is 0 (can be checked under Home > Set Preferences > General tab), - or -
b. Maximum Entries in Dropdowns is less than the number of possible values in the list/multi-select list