Set maximum texture size generated by the sprite packer?

I need sprite packer to generate textures of size 1024x1024. It seems that its maximum texture size is 2048x2048. Is there any possibility of changing this?

Cheers.

any idea on this ?

You need create new Packer Policy. Take code of DefaultPackerPolicy from Manual: Unity - Manual: Sprite Packer
Change:

entry.settings.maxWidth = 2048;
entry.settings.maxHeight = 2048;

on

entry.settings.maxWidth = 1024;
entry.settings.maxHeight = 1024;