Sell and unshield
Turn a shielded balance into ETH in one step, or take the tokens out to an address.
Sell
Open the Sell tab, enter an amount and the address that should receive the ETH. The app quotes the ETH you will get from the live market before you sign.
One operation leaves the vault, swaps on the token's market and delivers ETH to the address you chose. With No wallet selected you can sell from a device that holds no ETH at all: the vault pays the gas and the fee comes out of the account in QSHIELD.
The operation carries the least ETH you accept. If the market moves past it, the swap does not happen: sent with No wallet, the tokens go to the recipient address instead; sent with Any wallet, the whole transaction is undone and the balance stays shielded.
Unshield
Open the Unshield tab, enter an amount and an address. The tokens leave the vault and arrive at that address as ordinary QSHIELD.
Out of the vault, the tokens are a normal ERC-20 balance again, held by that address's wallet key. Unshield what you are about to use; keep the rest inside.