generate multiple islands

[wumeng]

Can I use a program to control the generation of scenes? How to generate multiple islands in the same scene

[Bryan]

Depends on what tool you are talking about. 

Gaia Pro yes you can either version works depending on the Unity version you are using. 
You could use the stamper and use a distance mask, and then use something like a height mask. 
Then stamp a mountain or island or even your own stamp. 

Otherwise you in the world designer you would need to adjust the generation settings to get this to work, however, I have found that using the stamper for something like this is the best solution. 

You could use a stamper at first or find a height map with multiple islands and then change the world designer from water or mountain to image and set the image of the height map to that. 

Then it could potentially work that way.