Lens has a limited set of number formatters, but Kibana already supports a larger set that we should enable in Lens.

Format name	Example input	Example output	Comment
Short number	2000	2k	Already has numeral pattern
Duration (must specify input unit, optional output units)	2000, input unit: seconds, output unit: auto	00:33:33	This is converting to hours, minutes, seconds using the numeral formatter
Duration	2000, input unit: milliseconds, output unit: auto	2,000ms (this formatter just applies a ms suffix)
Duration	2000, input unit: seconds, output unit: days		This kind of straight conversion without the "human-readable" part is not one of the default duration formatters, but should be
Bytes (SI)	2000	1.95KiB	Using the 0.[00]bb (bytes binary) numeral format
Bytes (1000)	2000	2.00kB	Using the 0.[00]bd (bytes decimal) numeral format
Bits (1000)	2000	1.95Kibit	Using the 0.[00]bitb numeral format
Bits (1024)	2000	2.00kbit	Using the 0.[00]bitd numeral format

The main reason to add these new "duration" and "bytes" options is to make Lens support the most common formats for metrics data, which are not handled well in Kibana overall.

The duration formatter is particularly problematic in Kibana, so Lens has an opportunity to simplify. Most duration units should get displayed with a simple suffix based on the input unit.