Ah, okay-- that makes sense! Hmmm, I wonder if there would be some way you could directly convert Magicavoxel files into meshes, since that's where I do most of my voxel work anyway? If so, maybe you could allow for the importing of larger meshes but give a warning that "you will have to use an external editor to alter these files" or something... idk, I'm not well versed in that sort of thing :P
I did notice the editor saves ALL the frames again even if most of them haven't been changed, too... is there some way to test which frames have been edited and which haven't and only save the ones that have changes? That could cut down on the save time, which can get lengthy if you have many frames, and might help with supporting a larger grid too? I dunno :P
No problem! Thank you for making this awesome program-- I've been looking for a voxel game maker for a long time, and this one seems to have a lot of potential! :D