Adding a new transaction is easy using Spendwise. When you click on the New Transaction button, you will presented with a popup where you can enter details of your transaction.
If you would like to add more transactions, you can check the Add more transaction checkbox for the popup to remain open. Or else, the popup closes after the transaction is added and will take you back to the transactions page.
New Transaction Popup
Adding an Expense transaction will add to the Total Expenses and deduct from Total Account Balance.
Adding an Income transaction will add to the Total Account Balance and Period Incomes.