Individual Rounding per unit prefix

[ey-jo]

Is your feature request related to a problem? Please describe.
Setting Unit prefix to auto and decimal rounding to a fixed number. Watts and Kilowatts are displayed with the amount of decimals set to.

Describe the solution you'd like
Would be nice to be able to set different decimal rounding for each unit prefix. For example, 0 decimals for k(W) and 1 decimal for no prefix (W).

Thank you!