How can i save and load

Step 1: Make your inventory by using /i "item id"
Step 2: Type /save in the chat to Save anything thats in your inventory
Step 3: Die
Step 4: Type /load to restory anything that was in your inventory after you typed /save

If you are too lazy to make your own inventory you can also "cheat" it a bit. (I use this way when i get some new friend on but i dont want to spend 20min with them looking for all the ids of items)

Step 1: Do /try (This gives you Veteran rank for one day.)
Step 2: Copy someone elses inventory by typing /copy "players name"
Step 3: Do /Save

/help and /guide are also very helpful for new players