Webflow CMS Collection Nest
Nest any Webflow element inside another Webflow element
Demo
How to add multiple nested lists to your Webflow Collections.
Firstly, make sure you have the VisualDX script before your </body>. Checkout the Quick Start for how to do this.
Prerequisite: Set up 2 CMS Collections and bind them with a Reference field or a Multi-refrence field
Add Link to Collection Item
In the Collection List I want to nest another Collection List:
Add a Text Link or a Link Block to the CMS Collection Item.
In the Text Link Settings choose the purple Collection page link option and choose Current Item

Add Nest Link Attribute to Link
Copy this attribute:
Paste the attribute into the Text Link Custom Attributes Name field.

Give Nest Link Attribute a Value
Give the Text Link Custom Attributes Value field a unique value. eg. card.

Add Collection List to CMS Collection Page
Go to the CMS Collection Page of the CMS Collection List I want to nest. Add Collection List to the page and filter by Current Category.
Add Nest This Attribute
Copy this attribute:
Paste the attribute into the Custom Attributes Name field of the Collection List or Collection Items you want to nest.
Give the Custom Attributes Value input the same value as the vdx-nest-link
attribute. eg. card
Publish
The Link with the Nest Link Attribute will be replaced with the Collection List or Collection Items with the Nest This Attribute
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