You may need to change the product's category if you want to use a TripCreator item that is not assigned to your preferred category.
To change a product's category follow these steps:
1. Navigate to Products.
2. Locate the product you wish to reattribute to a different category.
3. Tap the product's dotted menu.
4. Select the MOVE option.
5. Select the new category and subcategory, as well as product details you wish to copy.
6. Finalise the transfer by clicking the MOVE button.
P.S. The product's menu also offers the option to duplicate a product, which allows you to have the same product available in multiple categories instead of moving it.