The Form Builder lets you add, duplicate, or remove fields from any custom form on your SITE123 website. In this walkthrough we’ll review a common workflow: logging in, opening the relevant page inside the editor, duplicating a textarea field, deleting the duplicate, and finally adding an email field and saving the changes.
Log in to your SITE123 account
• Open the manager login page (e.g., https://app.site123-staging.com/manager/login).
• Enter the email address and password of your SITE123 user and click Login.
Open the website editor
• After a successful login you are forwarded automatically to the website wizard of the project you chose.
Go to the page that contains the form
• In the top-bar click Pages.
• Inside the list, locate and select the page whose module ID matches the form you want to change (in the example the module ID is 682f14300ed8b).
Edit the form
• The page loads inside an iframe called moduleItemsIframe.
• Hover over the Textarea element and click the Edit (pencil) icon.
• The field settings modal opens—click Save/Close to exit without making changes.
Duplicate the textarea field
• Hover over the same textarea again and click the Copy icon. A cloned field appears directly below the original.
Delete the duplicated textarea
• Hover over the cloned textarea and click the Remove (trash can) icon. Confirm the deletion in the pop-up prompt.
Add an Email field
• In the left column of available elements, click Email Field.
• The field is inserted into the form. Enable or disable validations as needed (e.g., make it required) by clicking the checkbox icon.
Save the form
• Click the green Save button inside the form editor to apply all changes.
Publish (optional)
• To make the updated form live, click Publish from the main toolbar of the website editor.
You have successfully edited a custom form: logged in, opened the specific page, duplicated and removed an existing field, added a new email field, and saved the updates. Repeat these actions any time you need to adjust form fields in your SITE123 project.
