Add mergeOptions config option

[BenLorantfy]

[tizmagik]

Hey @BenLorantfy did you want to get this merged? I think what you have so far looks good, would just like to see some docs if you can

[BenLorantfy]

yeah sorry been busy recently but I'll try to clean this up and add some docs 👍

[tizmagik]

Yea no rush at all, thanks for taking this on! 🙏

[tizmagik]

I'm going to merge this and add docs separately because otherwise I think this is good. Thanks again @BenLorantfy !