Hello,
So I have some questions regarding esenthel world terrains which I need assistance with.

1 - I have created 5 different worlds into over the past few months (https://imgur.com/CrUPHx4) but now realizing that i should have put them all into 1 instead. So my question is, is there a way to "copy/paste" worlds and place them all in 1 world? Because i want to avoid having to re-create them all.

2 - is it possible to change the area size and heightmap size from 64 to 32 for the worlds which are already created?

Regards

There's no built-in function for that, but I think you can achieve those goals through EI Editor Network Interface.