Oracle Forms querying strategies.

The text in italics below is taken from Querying Strategies in Oracle Forms Document 9724.1. 
I am trying to find out if this method of advanced querying is still available in 
Forms 12.2.X or has it been deprecated? 
I can't find any other reference to this querying strategy other than Doc 9724.1


Method 2: Using the & Sign
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1.  Put the form in the Enter Query mode.

2.  Navigate to the empno field.  Enter: &

3.  Press the execute key (as suggested by the message line).

    This displays a Query Where dialog box where you can type in any complex condition that you want.

4.  In the Query Where dialog box, enter:  ename LIKE 'S%' AND sal > 5000

5.  Follow the instructions on the message line again to execute the query.

    You have now used a powerful tool that helps you define complex