https://www.patreon.com/posts/how-to-make-cas-40691574

Note: There is currently a bug with custom CAS knittables where they duplicate in CAS upon unlocking them (excluding adding to existing knit swatches). I have posted a bug report on the AHQ and the Guru’s are aware of the problem and are looking into it. Feel free to post your experiences on there and Me Too the thread after you’ve made your items.

Updates

Just so everyone knows ahead of time, baby onesies are not covered in this tutorial but will be covered in my next set of tutorials, as the baby onesies have a different process and require a new script. Another is that this tutorial does require minimal tuning/modding, but I promise it’s not going to be scary or difficult, and I’ll explain all the steps! I’m only covering the basics in this tutorial to get your CC in the game and functioning.

Before I begin, when writing this tutorial I realized EA gave us limited interactions (or categories as I like to call them) and specific interaction names (like beanies), so I took the time to make a few more and rename some of the existing interactions so we could have more options, and made it available as a download. The new ones have their own unique level requirements, but the renamed EA interactions have the same level. If you used one of the new interactions I made then you will need to make sure to tell people download my custom categories .package and XML Injector.

For this tutorial you will need:

Note: Some images may be hard to see. I've posted an Imgur link for each one for you to click on and open in a separate tab to view in case it is.

To start make your CAS CC first as you normally would, but don’t do each swatch yet to save yourself some work. Cloning an existing knitting CAS item eliminates the next step, but otherwise is not required. If you are adding a new swatch to an existing knittable, you want to use “Add CAS Part Swatch” and skip this next step as your CC item already has what it needs.

Step 1: Once that is done (and if you didn’t clone a knitting item), go to the Warehouse section of your CAS item and select the CAS Part file. Look (or use the search function up above) for the section called “Buff” inside the CAS Part, and once you find it add 00000026 to the Group section, 000000000003AC8E to the Instance, and 6017E896 to the Type. This assigns the “WearingKnittedClothing” invisible buff that is required for a knitted item to be shown for the Knitted Aspiration objective.

https://i.imgur.com/QC1AfLe.png