Thanks Tobi, looks good, sorry for taking so long to look at this. There is now a small merge conflict due to changes we've made to main (sorry about this). I can only address these by creating a new PR. The easiest solution would be if you merge with main on your local branch, solve the merge conflict, and push your changes. The only change should be to delete the old docs/api/crps.md file and add crps_csg0 in the relevant place (line 61, I think) in the new docs/reference.md file. I can then finally merge the PR.

Thanks a lot!