user29353: Since some time bitcoind can have more wallets, there are commands: https://bitcoincore.org/en/doc/22.0.0/rpc/wallet/loadwallet/ and https://bitcoincore.org/en/doc/22.0.0/rpc/wallet/listwallets/
Does it mean that it is possible to run multiple wallets in parallel with single blockchain?
If so how do I send coins from particular wallet then? Eventually how do I list transactions from particular wallet?

user208: 
Does it mean that it is possible to run multiple wallets in parallel with single blockchain?

Yes.

If so how do I send coins from particular wallet then? Eventually how do I list transactions from particular wallet?

Depending on the context:

With bitcoin-cli, you have to add the -rpcwallet=WALLETNAME command line argument if there is more than 1 wallet loaded.
With bitcoin-qt (the GUI), there is a dropdown UI element for selecting the wallet.
With the JSON-RPC protocol exposed by bitcoind (and used by bitcoin-cli), there is a different HTTP endpoint for every wallet (http://localhost:8332/wallet/WALLETNAME instead of just http://localhost:8332).

When only one wallet is loaded, none of this is needed, and every request will be directed to the one loaded wallet.

29353: <p>Since some time bitcoind can have more wallets, there are commands: <a href="https://bitcoincore.org/en/doc/22.0.0/rpc/wallet/loadwallet/" rel="nofollow noreferrer">https://bitcoincore.org/en/doc/22.0.0/rpc/wallet/loadwallet/</a> and <a href="https://bitcoincore.org/en/doc/22.0.0/rpc/wallet/listwallets/" rel="nofollow noreferrer">https://bitcoincore.org/en/doc/22.0.0/rpc/wallet/listwallets/</a></p>
<p>Does it mean that it is possible to run multiple wallets in parallel with single blockchain?</p>
<p>If so how do I send coins from particular wallet then? Eventually how do I list transactions from particular wallet?</p>
 208: <blockquote>
<p>Does it mean that it is possible to run multiple wallets in parallel with single blockchain?</p>
</blockquote>
<p>Yes.</p>
<blockquote>
<p>If so how do I send coins from particular wallet then? Eventually how do I list transactions from particular wallet?</p>
</blockquote>
<p>Depending on the context:</p>
<ul>
<li>With <code>bitcoin-cli</code>, you have to add the <code>-rpcwallet=WALLETNAME</code> command line argument if there is more than 1 wallet loaded.</li>
<li>With <code>bitcoin-qt</code> (the GUI), there is a dropdown UI element for selecting the wallet.</li>
<li>With the JSON-RPC protocol exposed by <code>bitcoind</code> (and used by <code>bitcoin-cli</code>), there is a different HTTP endpoint for every wallet (<code>http://localhost:8332/wallet/WALLETNAME</code> instead of just <code>http://localhost:8332</code>).</li>
</ul>
<p>When only one wallet is loaded, none of this is needed, and every request will be directed to the one loaded wallet.</p>
