(or alternatively, with any block that is in a certain config). Would that be possible?

Harvest Goddess is a Ritual, not a Sigil. Is that what you meant?

I was afraid that would be the case. Is there at least a possibility to show me where the code for that particular item is so I could maybe look at it myself? Like, the part for the right click...

No sorry, can't help there

No, I meant the sigil. In the version I'm using there is one... (1.7.10)

1.7.10 is no longer updated, so it is a feature that mostly likely will not be added

Okay i found it. I'm gonna take a look and maybe add a handler myself. If you want a PR even though I'm only gonna do it for 1.7.10, tell me. Otherwise I'll just try to compile it myself for myself.

The code on my branch works now. Feel free to use it, everyone.