How to place community spaces in other worlds?

You need the community space one first. Once you have that, you can choose to download and add (or build your own) for the garden, marketplace and makerspace. I don't think you can just download a makerspace and it works. You might be able to if you go into build mode, make the lot a blank community space then add the one you like. You will still have to go to live mode though and activate it, either by legit voting or cheating it up.