That's a good question. Off the top of my head it might not be hard. I'll look into it.

is this being worked on? :)

well this type of a feature seems possible but it's really out of scope for the intended purpose of the mod. Which is to help recover unrecoverable inventory from hidden corpses and death caches that can't otherwise be found.

Sasha, consider increasing the time delay for using the stone to 30 minutes (or some time period that is slightly longer then how long it takes for the corpse and death cache to expire). You could also enable a global timer so that it's not the last time you used your stone but the last time anyone on the server used the stone. I beleive this would resolve the issue your concerned about.

Yes, you've got the basic idea Sasha. With a 30 minute timer it wouldn't stop them from doing it once an hour, a 60 minute timer even more so. Assuming they didn't use the stone for seomthing else. A global timer could make the stone unavailable for hours depending on who else used a stone. The later puts a lot more gear at risk of being lost due to bugs.

It really depends on what's the best fit for your desired play style. An item exclusion list would def be the only way to keep the stone use flexable and provide a way of stopping what you refer to.

I don't want my players to use this as a way to get down into the Rock Drakes egg area, pickup eggs, die and recover them back home.

Is there a way to block recovery of said eggs? Would be really appreciated, thanks!

Not at the moment, you can adjust timers to make it less likely for them to do this for now, I will probably add an exclusion list at some point.

This has been implemented.