Step 1 : Find the tenancy which has the transaction you wish to clone
Step 2 : Click on the accounts tab then Landlord
Step 3 : Click on the little square icon next to your transaction
Step 4 : When on the fee click on clone button on the right hand side.
Step 5 : You can either change the amount or date on the cloned transaction.
This will create a future transaction that will appear on the Landlord statement and account.
