You can create new SPL tokens, mint additional supply, freeze or unfreeze accounts, and revoke mint or freeze authority - all directly from your connected wallet.

As long as you still hold Mint Authority. Use the 'Mint Tokens' page, enter the amount you want, and approve the transaction.

Your newly created token will appear automatically in your Phantom wallet. You can also verify it on SolScan by searching your wallet address or the token mint.

Yes. All actions happen directly on-chain from your wallet.