There is more than one address in a wallet. We can receive different payments using these addresses. But all the pays are in the same wallet. When we make an address payment, we will send our through which address.
For example, MyWallet is my purse. I have my A, B, C, D addresses in this wallet.
A: 0.2 BTC
B: 0.1 BTC
C: 0.7 BTC
D: 0 BTC
MyWallet: 1 BTC
I want to send the address bitcoin to D. Now when I write address D in my wallet, 0.5 BTC will be sent from which address.
You can do this with wallets like Bitcoin Core. Click on "enable coin control" or something like that, something that says coin control I think under advanced tab. Then you get all the inputs and outputs. So you can send with only one output or various. Its a bit non userfriendly but after you use it a couple times its easier. I wish this was able to be used in a more dumbed down way for noobs since its obvious we want to know how the transaction will look like since the blockchain is open and we dont want certain addresses to be linked with other addresses in a single transaction.