Possible to automatically highlight a substring within a text edit box?

[#1]

Hi.  I'm wondering if anyone knows of a method where my script can automatically highlight a substring within a text edit box?  I'd like the user to be able to

1. Click on the text within the TEB at a specific location.

2. A "<< Set Text Changed" function would return the location of the cursor in the text field using a yet-to-be-determined command.

3. The script looks around the cursor location for predefined delimiters in the text.

4. Finally it highlights the text between the delimiters.

I briefly explored using a MouseBox wrapper, but at first blush there doesn't appear to be any easy way for JMP to associate mouse position with the underlying text.  Plus, even if I could figure that out, there doesn't appear to be any way to have JMP highlight substrings within a text edit box (none that I could find at least).  

Perhaps there's another type of display box I could employ to do this?

JMP Pro 16.2

macOS Big Sur 11.6.5

Any help is appreciated.  Thanks.

[#2]

Textboxes can use a simple markup for bold, italic and underlining.  Look in the scripting index at text boxes, for markup.

Names Default To Here( 1 );
example_text = 
"This is <b>bold</b> text. This is <i>italic</i> text. This is <u>underlined</u> text. 
This is <b><i><u>bold, italic, underlined</u></i></b> text.";
win = New Window( "Example", tb = Text Box( example_text ) );
tb << markup;

[#3]

I'm aware of this feature, but text boxes do not allow the user to manually select the text within them, nor do they have any way to execute a function when clicking on them.  I'm looking for something where the user can click on, say, a single word in the text string, and a function will automatically select the entire word.

[#4]

You can use a text edit box to allow users to click on the text.  If you double-click on a word the entire word will be selected.