Color balance sliders

Since there is a blue/yellow slider and a green/magenta slider,
why isn't there a red/cyan slider?

In principle there is.
Which software ?

Lightroom 3

Ah sorry but I'm DPP user.

If you move both the sliders you have the same amount in the same direction, it's the equivalent of moving the non-existent slider in the opposite direction.

Sorarse wrote in post #14078988
If you move both the sliders you have the same amount in the same direction, it's the equivalent of moving the non-existent slider in the opposite direction.

Thanks. So if you increase blue and green you get a cyan increase.
If you increase magenta and yellow you get a red increase.

I wonder why the software doesn't use a color wheel like the video editing software:
Pull the midpoint of the circle in any direction.
One circle for each of highlights, midtones and shadows so you can color balance different levels of luminocity.