How to add just a label to an Incident Template?

How to add just a label to an Incident Template?

Hello.

I would like to add just a label to an incident template, without the text field. How can I achieve that?
If that is not possible, how can I disable the text field from editing?
I tried to play a bit with the properties of the custom fields, like disabling "Requester can set" but no luck.

Thanks for your help.

Cheers.

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