How many island in the current build of the game?

[How many island in the current build of the game?]

is it possible to get the map from your dedicated server? and add more islands using editor? 

[How many island in the current build of the game?]

Just been playing for a bit, and Ylandian Dust is pretty scarce, but iv only discovered 3 islands after leaving the starter island. 

[I cant connect to my Deticated Server]

It just says "Establishing Connection" but nothing happens. The server worked fine when I was by myself then when my friend joined it started getting buggy.. Character got stuck in place, I couldn't mine, or dig so I researched and someone recommended restarting server, and once I did that I couldn't connect. If there is no solution can I recover the save and just go back to singleplayer because I have way to much progress to start over again..