Ocean Optics SeaChanger

There's no 'key' per se as to how the templates in the show files work - Congo is a native-ASCII console, so the template section simply lists the options and references.

We don't expect anybody to work with the ASCII file directly, except when repairing a corrupted showfile.

The built-in editor is fully-featured - it is exactly the same editor that we use to create templates.

Congo isn't designed to do what you're asking though, as single attributes aren't expected to change multiple DMX parameters simultaneously.
(The exception is obviously the strike/douse/reset functions, which force a value to as many DMX parameters as required)

There is one method that might work, whereby there are a huge number of ranges in a 'Gelstring' dummy attribute, and each of the CMYxG attributes have a table that indicates the 'correct' position for the 'Gelstring' colour.

You then pick a colour on the Gelstring, and manually jump the CMYxG wheels to range 1 in order to mix the colour.

It wouldn't be very user-friendly though - once there are more than 100 ranges on a given wheel it gets very fiddly to use as the Direct Selects can no longer offer shortcuts, so you'd need a spreadsheet showing the 'Range number' for each colour on the 'Gelstring' attribute.

I think what you're really after is a set of commonly-used generic palettes using the values taken from your spreadsheet, that you then import into every show that uses the SeaChangers.

The spreadsheet Ocean Optics have provided is probably the most user-friendly way to program the colour palettes you're likely to use in a given show

Remember that palettes can be recorded as "For Each Device Type", and they then apply to every SeaChanger in the rig, rather than having to program them all individually.