The apply search keys (search tags) feature allows search keys to be applied to a selected set of transactions without opening each transaction.
For orders, select the orders application in OASIS and perform a search to find the orders to view. Then manually select (highlight) the orders that are to be updated with the same search keys:
Then select “Tools” then “Apply Tags”:
Make the required selection and press “ok”. All the selected orders will have the tags as shown in the window.