Creating anchor tags in single line fields for company properties

I am creating a 'Key Contact' field in the company settings. This will be an existing contact within Hubspot that is associated with the relevant company. To ensure accuracy, i wanted to use the '@' followed by their name, to ensure the contact is correct on Hubspot (the other option is to cret e adrop-down from 'Associated contact', but that ould potentially be clunky). You should defilnitely deflop some anchor tag functions in the single field entry. I can see a few different applications for such a function.

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