New to Unreal Engine 4.26

I am exporting some scenes from the marketplace to add to my project and when I do this I am not able to move any foliage or even add materials to the floor. They are blacked out so when I use them my whole landscape is black

This is explained in the landscape documentation of ue. Please check it out.

Check out create landscape materials.

My tip is also to check out youtube guides if you can’t understand something. There is a lot of content that explains how to do landscapes, models, mantis imager, animations, mechanics etc. Now I am personally working to create a little project for android. I want to have a portfolio for a possibility to have a job related to unreal so I think that’s a nice idea to have some android project in your pocket