Display special characters like <GS> in Data Grid

The result of this query
SELECT 'X' || CHR(29) || 'X' FROM dual;
is shown as
XX

When I copy that to the Editor window, it is displayed correctly as
image

I tried to change the font of the Data Grid to Courier New (also have that in the Editor) - still does not show.

Is there a way to display these characters in Data Grid?

The only way that I can think of would be to set the grid to use a font which display them.

Does it work when you try that?

Actually, it does not. I think the Editor has some special handling of them, and it's more than just the font setting. Sorry about that. I don't think it's possible to show them in the current version.