Exporting Large vertical PNG sprite

Hi Godot Community.

I’m currently working on a project in After effects, which I have exported a PNG sequence of 150 frames and need to make a PNG vertical sprite.
Specifically, I’m looking to create a sprite sheet with dimensions 1000 x 1000 pixels. I was looking on the internet and received some information about
Godot game engine, which said it’s powerful enough to handle this type of task. ( Import the PNG sequence and Make the Sprite within Godot)

Is there a built-in feature in Godot to handle this, or would I need an external tool? If Godot can handle it, could you guide me through the best approach to achieve this?

Thank you for your help!

this? texture atlas on import settings
image
but i dont think it will vertically align it like you want…