<p></p>
<p><b>@chimp1984</b> approved this pull request.</p>

<p>ACK<br>
Tested now and worked all! Great tool!<br>
Small nit with catching invalid inputs at parseCoin...</p><hr>

<p>In <a href="https://github.com/bisq-network/bisq/pull/4899#discussion_r544494554">desktop/src/main/java/bisq/desktop/main/overlays/windows/ManualPayoutTxWindow.java</a>:</p>
<pre style='color:#555'>>  
-        TxBroadcaster.Callback callback = new TxBroadcaster.Callback() {
-            @Override
-            public void onSuccess(@Nullable Transaction result) {
-                log.error("onSuccess");
-                UserThread.execute(() -> {
-                    String txId = result != null ? result.getTxId().toString() : "null";
-                    new Popup().information("Transaction successful published. Transaction ID: " + txId).show();
-                });
-            }
+    private void calculateTxFee() {
+        if (buyerPayoutAmount.getText().length() > 0 &&
+                sellerPayoutAmount.getText().length() > 0 &&
+                amountInMultisig.getText().length() > 0) {
+            Coin txFeeValue = Coin.parseCoin(amountInMultisig.getText())
</pre>
<p>Coin.parseCoin can throw exceptions if input format is not as expected. Best to add a try catch...</p>

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