Merging Object editor data with JNGP?

[Coolty44]

Hey, So I was wondering, does the "Merge Object Editor data" work in NewGen? If so, then how do you properly use without having any errors? I need abilitys from an old map into a new one, and I cant replace some of the newer ones/remake them. +rep to the person who tells me how to do this.

 

[PitzerMike]

There are three modes for this. One that overwrites existing objects with the same id, one that generates new ids in case of conflicts and a third one.
The Grimex documentation explains this in detail.
You can find it in the newgen folder under NewGenReadme.html and then there's a link at the bottom to the documentation of Grim Extensions.
It's also important to close and re-open the map after merging as otherwise the changes won't be saved.