If you want to use merchandising functionality that Tweakwise provides, you can configure your listing page in the Shopware Shopping Experiences module.
- Go to Content => Shopping Experiences
- Select your listing page template
- Find the "Category Listing' element.
- Click the clog icon in the right upper corner
- In the first tab (Content) select 'Tweakwise Merchandising'
New Shopware installation?
If you're using the default Shopware layout, you'll have to duplicate that default layout before you can edit it.
Don't forget to assign it to your categories!