Hello
If I understood your issue correctly, when you post the scrap you want to consume the components with a different goods movement, is that right?
Check the customizing transaction OPKA. Here it is possible to define which movement type will be used for the confirmation goods movements and261 is the standard movement type for the goods issue. If you change that, you will change for all the goods issues.
You can try to use WORKORDER_GOODSMVT to change the movement type.
If what you want is to post a goods receipt for waste, then the suggestion from Rupesh is valid and you can define which movement type will be used on OPKA.
BR
Caetano