You specifically mention Colour Toning and I do believe that stuntflyer’s reply covers that part.
I do like to mention this though: At times it is rather hard to create a good mask using the Colour Toning tools. If that is the case you might want to switch to the Local Adjustments tab. The control you have to really fine tune a mask are better and more versatile in my opinion. If you would use it in combination with its Color & Light tool you have a rather similar “module” compared to Colour Toning. But you can do so much more with the other tools present as well.
If you are interested do have a look at @Andy_Astbury1 other videos, he has 3 that deal with the Local Adjustment module.
BTW: This is not shown/mentioned in the Andy’s Colour Toning videos and maybe obvious, but: You can combine Hue, Chroma and Lightness to fine-tune a mask.