Considering there are a lot of other mods to make the Totem of Undying work from anywhere in the inventory, it would be nice to have an option in Lacrimis to make its more expensive and powerful equivalent also work from the inventory, without requiring it be held all the time.

If there was a way that my mod could more easily be compatible with those ones I would do that, and as it stands it is possible for one of those mods to implement. The problem is that I certainly do not want my Totem working that way by default, so I would have to set up some config or a gamerule. Not sure if I will but I will add it to the list. If I do implement that it would also be easy to make the gamerule apply to both.