I would love to see a user customisable setting (via preferences) that lets the user select the date range viewable in the Sales and Purchases Register, it'd also be productive to have default button...
In both the purchases and sales registers you've got a date drop down box to select a From and a To date. It would be extremely handy to have a three extra buttons to the right of the drop downs "This month" "Last month" and "All".
"This Month" because I often want to see how much I've invoiced in the current month as thats a basic metric as to how well the business is tracking.
"Last Month" because I want to know which bills are due given just about all our suppliers are EOM+30 days terms
"All" because quite often I need to look for a purchase or sale but aren't sure which month it's in.
Cheers,
Adam