Is there any way to add slots like which makes it possible to wear more than one ring on single hand?

A configuration file may be good...
Thanks a lot

it is possible to make slots that behave like other slots, such as a hand:ring2 that checks items against the identifier hand:ring but that could possibly lead to issues with mods that check specific slots for their items. A config file for stuff like this is out of scope for trinkets, this is an api mod and slots are defined and added by mods that use it.