5 minute booking intervals ...

Hello,
we are integrating your wonderful software for our bookings of rooms and other varied resources. Now, due to the nature of our schedule we would love to be able to allow our users to pick out the beggining and end times of their reservations with 5 minute intervals.
Right now we are running the software with the 10 minute intervals which is the minimum that your software allows, but like I stated before, this interval does not fit our odd schedule very well and will cause, once the software has been fully integrated into daily use, chaos and general disconsent >D ...

Anyhow, if anyone could please post a solution for this small quirk we would be extremely thankful.

Thank you,

Akseli

PS. As I am unsure of where to post this request/question I will be posting a copy of it in both the developer and the "feature request" portions. I hope this isn't a problem. Thanks.