How do I add a field to a list view in Servicenow?
Hover over the simple list widget and click the edit icon. Go to the "fields" property and click in empty space and choose fields. Click "Save" or do a Ctrl + S.
How do I create a list layout in Servicenow?
Right-click the header and select Configure > List Layout. Open the context menu and select List Layout. If you are creating a view for a form, open a record, then right-click the header and select Configure > Form Layout. Under the List View section, select the view on which you want to base your new view.