Why would you want to? Landscape is more performance efficient for large landscapes due to it's LOD system while still preserving detail up close, is probably optimized into newer engine mechanics, offers Foliage, has advanced sculpting tools and is easier to set up for layer painting.
Well i guess i'll just use it, but i have one question, in terrain mode you could add sectors a little bit at a time, but in Landscape when i go to add a sector it adds this huge sector to my map, what if i dont want a sector that big? how do i make it smaller and is there any consequence to making the sectors smaller? I have a 253x253 landscape, but i will be making it bigger while working on my map, it will expand to more than triple that size.
no no no thats not what i was asking, what i was askin is how do i make the sectors in Landscape smaller because they are too big. also i followed this tutorial to the letter and my landscape turns black when i add the material to it.
You can't. It's how they are stored internally. However, you can use the Visibility tool to just paint the faces invisible that you don't need. Afaik should that also improve the performance since they don't need to be rendered then.