Describe the bug
Currently it is not possible to craft the different stone block stairs and slabs from their respective blocks in the Stonecutter.

To Reproduce
Steps to reproduce the behavior:

1. Place a stonecutter
2. Place Carbonite or other stone in the input slot

Expected behavior
It would be nice to be able to craft stairs, slabs, etc. in the stonecutter.

Thanks for the report!

This bug has been fixed in v1.4. I successfully added stonecutting recipes for 176 items.