From the side panel, navigate to the Transactions tab.
In the Quick Search field, type a Crypto symbol contained in your transactions. This will filter your ledger to show transactions from this symbol. For this example we chose SOL.
Using the checkboxes, select one or more transactions.
Click on the "More" button, then select Change Crypto Type.
Enter the name of the Cryptocurrency symbol you wish to change the transaction to and click Update. For this example we chose ETH20.
Click on Update Crypto Type when ready.