There are two ways to use the tcode rate instead of the timekeeper rate. You can specify individual fee transactions to use a Rate Code of 7 Tcode Rate, which allows you to manually switch to using the tcode rate. Alternatively, you can set up the client to use the tcode rate as the default. When the client is set up this way, all fees entered for the client will default to using the tcode rate.
To set a default rate code of Tcode Rate