Give transformers a valve-like slider to limit or set power flow

[Zarquan]

People like using transformers as "energy valves", where they limit the amount of power a grid is given by using transformers.  However, the existing transformers only exist at 1 kW and 4 kW.  From a valve perspective, 1 kW is useful as you can limit power going on to a grid to 1 kW to not break basic wires.  And you can use two of them for conductive wires.

But the 4 kW version feels useless to many players.  I use them to transfer large amounts of power between heavi-watt grids, but I find myself building the lower level version of the building far more often than the higher level one.  

I think that since so many players use them like valves, that perhaps they should have valve-like controls.  So I could use a transformer to only give, for example, 100 W to a grid that needs less than 100 W on average.  Or use a large transformer to power-limit to 2 kW instead of building two small transformers.  Small transformers can have a lower cap than large transformers, which would make large transformers an actual upgrade.

I think this change would make a lot of players happy.

Edited 22 hours ago by Zarquan