can you ask the things you want for your expansion? For example, I dont want any furnaces, but I would like more chests and maybe an infinite water and lava source. Would these extra additions need to be separately added, or can I tell the person updating mod what to put and what not to for a donation upgrade?

you can get infinate lava sources? how?

well I thought you could, but after looking at the vault expansion page, I am not so sure anymore. Does lava replenish similar to the way water replenishes? If it does, I feel as tough it wouldn't be too hard to make one.

if you are meaning using in a 2x2 pool, it doesn't work with lava, only water.

Donation expansions are set but you can buy additional expansions. Make a pe ingame with a list of what you want added and if you run out of space use /pe comment # msg

Vault addons can be paid by gold, diamonds or mt credit.

You can have lava in your vault but I don't think it will be an infinite source x

oh and a question on the vault add ons... How can you have a infinate water source in your vault when you dont have perms to use them?