How to add rows in matrix field dynamically.

1) You can hide the text for that column header with the following code: https://www.jotform.com/help/117-How-to-Inject-Custom-CSS-Codes 

.form-matrix-column_0 {

    color: transparent;

}

2) No, our matrix field can not have dynamic rows. You may try using the Matrix Dynamic widget instead: https://widgets.jotform.com/widget/matrix_dynamique 

If you do not know how to add a widget to your form, please check this guide: https://www.jotform.com/help/252-How-to-Add-a-Widget-to-Your-Form 

Let us know if you have more questions, we will be glad to assist you.

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Thank you!

Please try adding !important suffix to your CSS line, like this:

.form-matrix-column_0 {

    color: transparent!important;

}

And if the issue persists, please share the form you're working on. I checked this one https://form.jotform.com/73325797590165  but there is no code in Custom CSS code there.

We'll wait for your response.

Thank you!

I just loaded that form, and the code worked, the label from that column is not showing up:

Please try clearing your browsers cache if it still shows up. 

Use this code:

.form-matrix-row-headers{

    color: transparent !Important;

}

Result:

Could you please tell us what is the issue you're exactly experiencing, are you seeing any error?

We don't have any issues with Support page at this time.

Thank you!