Why doesn't terraforming in Minecraft work for me?

I've been looking for an answer to my question for a while now.

I need terraforming in Mc, but whenever I enter any orders it says: Unknown order.

I'm slowly desperate and I hope someone here can help me.

What kind of terraforming order do you mean? Maybe you mean world edit?

What kind of "orders" do you mean exactly?

Most of these commands will come from modifications - did you even install them?

Generally all of them, an example: // set 35

Terraforming can be learned.
But you can also do a lot with WorldEdit, (WorldGuard), Fawe, DummyFawe, VoxalSniper.

I didn't know that you had to… Where can I find it?

Uh, unfortunately I don't know my way around that well, what is that?

Where can I find that?

via Google… An example would be WorldEdit

Okay thanks, I have to do it later

So what version of Minecraft are you playing on and do you mean the Bedrock Edition or Java Edition, hopefully you mean Java on Bedrock, I don't think so.

These are plugins, mods. So add-ons which make terrar formation easier for you.

I have Java…