Ok, i understand what you mean. I have set up 4 different booking types and have pointed every reservation type to 1 booking like 12-2 etc.
Have a look at the screenshots to see what i mean. It didnt really work but not sure because its a bug or just it didnt.
With bug i mean, something weird happened. I have created 4 booking types and when i went to the "Prices" tab to assign every unit to the individual booking types in the field where i select it instead of the name it came up with "Reservation type hourly label" (see screenshot)
I have still assigned every unit to a different type, even though they looked the same. SO not sure if it was because of that or simply doesnt work..if it doesnt work.....im screwed :-)