`data` indentation starting from begin of line and deriving on same line

[ignamartinoli]

I tried different combinations of options, and there is currently no way to format a data declaration like this:

data Temperature = Temperature
  { unit  :: Char
  , value :: Integer
  } deriving (Eq, Show)

In the records section of the configuration, I can't configure whether to indent each field:

• from the beginning of the data constructor (only current behaviour)
• from the beginning of the line

(Also, there is no way to have deriving on the same line of the closing bracket)