Thats assuming a lot of things.
Like you importing the correct textures, the grass meshes and a bunch of other things which aren’t part of the landscape.
And for what?
It looks like sh*t and it isnt an “automaterial”, its a noise pattern used in a tiling setup to place grass meshes around.
Time to do it yourself?
about 5 seconds.
And you can probably use a better way to generate the noise texture too in that 5 seconds.
And if we are calling “automaterial” a random noise pattern which places different grass around, then we can also call the engine’s documentation section “helpful”…