What is the staking process?
The staking process depends on wether you join a nomination pool or if you nominate your validators directly.
If you choose to join a nomination pool, you need to choose the amount to bond (ie stake) when joining the pool. Then the pool will nominate validators on your behalf and you will be able to claim available rewards or bond them every era.
If you choose to nominate your validators directly, you will need to bond your token and then nominate and monitor your validators
Do funds move out to another wallet?
No, the bonded funds stay in your stash account wallet.
Can I keep staking/unstaking from/to the same wallet?
Yes, you can bond extra tokens to the same wallet and unbound / withdraw several times.
Can I select how much of my wallet balance I want to stake?
Yes, you select the amount of tokens you want to bond in a stash account.
Can I unstake part of the staked balance?
Yes, to do so you can select the amount of tokens you want to unbond (this takes 28 days), and then withdraw it (instant).
How is my balance computed at era N for the rewards distribution?
The balance computed at era N for the rewards distribution is the balance at the beginning of era N-1.