When making a payment for a large amount for a product like insurance which covers a long period, it would be good to choose to divide this across the relevant number of months when displaying Spending Trends.
E.g. if I spend £1656 for Insurance that covers 18 months, it would be nice to choose which category e.g. Insurance, and the instead of seeing one huge payment for £1656 in one month and then nothing for 18 months, it would automatically display as £92 per month in Spending Trend charts instead, with some indication or link back to the original payment.