In the Composition Editor for EditorView select
to test your part. Type several lines of text into the Multi-line Edit
part making sure that some string occurs in a few different places.
Click mouse button 1 at the top-most, left-most position in the Multi-line
Edit part to start the search from the beginning of the text you
entered. Click mouse button 2 (mouse button 3 on UNIX systems) on the
Multi-line Edit part to access its pop-up menu and select
Find. The Find Dialog window should open. Type some
text into the Find Dialog's Text part. Be sure to use some text
that appears in the Multi-line Edit part. Select OK, and the
desired text should be found and selected in the Multi-line Edit part.
Select OK again and the next occurrence will be found.