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.