@TriciaB
Does adding `.prop("disabled",true)` to your JS help?
So it should look something like this:

```
$('QR~QIDx~1~2').up('td').childElements().prop("disabled",true).invoke('hide');
```
That should hide and disable the elements you designate.

A less elegant way with a bit more code would be to write the "hide" and "disable" for each appropriate cell in your matrix.

```var cell = "1~2";
jQuery(("#QR~"+this.questionId+"~"+cell).replace(/~/g, "\\\\~")).closest("td").find("*").prop("disabled",true).hide();
```

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Thanks @C_Bohn, but that doesn't seem to work. It just crashes and doesn't even hide the cell.

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@TriciaB .
I wonder if we approach it from a different angle if it would help.
For example, let's say I have a 3x3 matrix:

!

Let's say that I also want to hide and disable the following cells: row 1 column 1, row 2 column 2, row 3 column 2, and row 3 column 3.

In the JavaScript, I would build out the following under ".addOnLoad".

<code>
Qualtrics.SurveyEngine.addOnload(function()
{
var cell = "1~1";
jQuery(("#QR~"+this.questionId+"~"+cell).replace(/~/g, "\\\\~")).closest("td").find("*").prop("disabled",true).hide();
var cell = "2~2";
jQuery(("#QR~"+this.questionId+"~"+cell).replace(/~/g, "\\\\~")).closest("td").find("*").prop("disabled",true).hide();
var cell = "3~2";
jQuery(("#QR~"+this.questionId+"~"+cell).replace(/~/g, "\\\\~")).closest("td").find("*").prop("disabled",true).hide();
var cell = "3~3";
jQuery(("#QR~"+this.questionId+"~"+cell).replace(/~/g, "\\\\~")).closest("td").find("*").prop("disabled",true).hide();
});
</code>

What results in the survey view is a cell that is hidden and disabled.

!

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None of these worked for me. I could hide options, but if I tried to disable them, they wouldn't even hide anymore. My solution was to hide the options, then add custom validation that didn't allow choosing a hidden option, with the message "Please choose a valid option".

---