Timespent for hour based contracts

Hello,

My company provides both billable customer support and non-billable support. the technicians would like to track the hours worked for both billable hours and non-billable hours. Currently, to make this work I need to have a separate contract for the billable hours. The technicians must ensure that the appropriate Product/Contract is specified for the request before they make any timespent entries, otherwise the entries are not deducted from the Hours based contract.

I would prefer to only have one contract that can be used for all of the hours (billable or non-billable hours logged as timespent entries). the way to do this is to have a simple check box on the time spent screen. If hours should be deducted from the contract then they can check the box called billable. If not then they simply dont check the box.

This saves having to make a special billable hours contract for every customer that is separate from the default contract.