I don't think my suggestion was clear. You will have 3 fields...
Field 1: URL-Formula using Field 2 in the formula
Field 2: Text with desired input box length
Field 3: Checkbox
Field 2 is used to populate & edit the URL, Field 1 is used to access the URL as a link.
Field 3 is used on the form to show/hide Field 2 for editing.
This is also beneficial because the URL-Formula will always be clickable in either edit or view modes.
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Sharon Faust (QuickBaseJunkie.com)
Founder, Quick Base Junkie
https://quickbasejunkie.com------------------------------