Add a sizing hint to the scaled scenario form
Clone the options object when formatting values

Failing to clone the opts object means that the same precision will
be used for formatting all values in the series. This poses a problem
when the first value to be formatted has a precision of 0, as the
formatted series might look like: 0PJ, 0PJ, 0PJ, 1PJ, 1PJ, instead of
0PJ, 0.2PJ, 0.4PJ, etc.
Nicer number formatting in the settings menu