How to sign staking-related transactions from a staking proxy
This guide assumes that an account that you have imported into Nova Wallet has been set as a Staking Proxy (Delegated Authority).
Open the Nova Wallet application.
Select the identicon at the top right of the Assets screen.
Select the account which is Delegated To You as a Staking proxy.
You will now see that the identicon at the top right of the screen has a new icon next to it, this indicates that you are controlling a delegated account.
You can now carry out staking operations on behalf of that account.