Coincontrol does it(change). Just change address to custom.
Only the amount of 1 coin is a big lag with gui.
So you say with rcp commands you can use other values than 1 coin to mint zero?
Is it there in zoin? Looked for it but didn't see it anywhere
Haven't tried the rpc but it looks like the calls are:
mintzerocoin - mintzerocoin (1,10,25,50,100)
spendzerocoin - spendzerocoin (1,10,25,50,100)
From the code here:
https://github.com/zoin/zoin/blob/master/src/rpcwallet.cpp#L1624Think the limited possible amounts are for privacy. Otherwise it's easy to tell just by amounts which spend is linked to which mint.
already done minting zerocoins and here how to proceed.