Armory wallets are deterministic. The private keys are derived from a unique root. Keep clicking receive coins on your offline computer, it'll keep generating new addresses until it eventually hits the ones you have marked as "change address" on the online watch only counterpart of the wallet
Ah I see. I have the address now but I'd like to transfer all the funds back to my original BTC address. Now, the problem is when I come to sign the transaction, there is no transaction amount
On the online computer I click the Coin Control button under the send menu and choose the newly created 'change' address only. Back in the main send window, I choose Use An Existing Address For Change and point it towards my original BTC address (not strictly necessary I know but at least it is done for next time!!) and remember for next time.
I choose the recipient address (original BTC address) and hit the max button. As I would expect, only the entire balance of the 'change' address appears in the amount box. So far so good (I think
).
After clicking the Create Unsigned Transaction button, I get a dialog confirming I am about to send x BTC to y address and the fees involved etc...
I click Continue and then save this file to a USB stick which I then take to the offline computer. I click Offline Transactions and then choose to Sign Offline Transaction. I loads the unsigned file from the USB stick into the Review Offline Transaction window and the Transaction Amount at the bottom of the window is blank.
If I click the sign button it asks me to confirm a transaction consisting of nothing more than a transaction fee. The funds have somehow gone.
What do I do now???