can you make saving and loading automatic?
It is. When you kill someone/get a level up, your file saves. You can confirm this by looking into the console. It should say something along the lines of
<name> Saved his/her file.
.
Due to this, saving upon leaving is not needed, since you can just say /save, and it saves auto whenever something effects your exp. (Excluding /setlevel)
Loading is automatic; Upon joining, if you do not have a save file, it will set your exp to 0, maxexp to 40, and level to 1. It will then save. If you already HAVE a save file, it will load it.
You can also edit the save files. Here is the format it saves in:
(DOCUMENT NAME:) <blid>.txt
(CONTENTS BELOW)
<blid> <level> <exp> <maxexp>
So if you were to look into my save file (15144.txt (providing that I joined your server)), and I had level 1 with 5 exp and 40 maxexp, it would look like this:
15144 1 5 40
**Editing/Deleting save files is NOT RECOMMENDED. This may potentially corrupt whoever's save file you are editing.