Entering Loan Account Transactions
Moneydance does not support importing data or entering transactions into loan accounts.
The reason being that it should not be necessary.
You will likely be making your loan payments from one of your bank accounts.
You should download or enter transactions into the bank account.
These transactions will include debits for the loan payments.
Then go through the confirmation process to handle the downloaded transactions.
Or amend the category field of the manually entered transactions.
Enter the "Loan Account" in the Category field of the loan payment transactions.
This creates a transfer between the accounts.
This will automatically input the corresponding matching transaction in the loan account.