How can we improve WHMCS?

Auto Update PKR Currency Exchange rate on Daily basis and Update product prices with cron Job

Hi i would want to request these Feature

1) Auto Update USD to PKR Exchange rate for PKR currency
2)Daily Auto Update all Currencies Exchange Rates
3) Daily Auto Update Product Prices according to new Currency exchange Rates
4) Auto recalculate Existing Clients Product Services Price according to Current Exchange rates at the time of Invoice Generation

These Features would make it more easy for Us to manage clients payment and Avoiding Conflicts with them about Invoice price changes in invoice after invoice generated Already they don't like it invoice generated already then we manually update invoice according to updated Exchange Rates Automating this process would make it Alot easy for both of us Vendors and our Clients

See Attached Screenshots for Reference to what i'm asking