The new version 0.9.40 of CCDciel includes scripts for Siril.

It is possible to use scripts to pre-process the new images automatically for example at the end of the nightly sequence. You can now have your pre-processed files ready and immediately start the interesting part of the process. 😉 There is standard script you can use directly or if you have very specific needs you can modify them to make your own. See here: https://www.ap-i.net/ccdciel/en/documentation/image_preprocessing
This is a companion discussion topic for the original entry at https://siril.org/2018/07/the-new-version-0.9.40-of-ccdciel-includes-scripts-for-siril./