'add field' section nowhere to be seen

[m.kangwa (mutale kangwa)]

Hi I’m new to Webflow and I am trying to add a new custom field. I’ve watched tutorials and they all seem to have an add field section however I cannot see it. I am using a web flow template

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Here is my site Read-Only: LINK
(how to share your site Read-Only link)

[Siton_Systems (Ezra Siton)]

“Add Field” is under collection setting