Custom Colors staying permanently in Color Editor

Hello,
I am wondering if you could please make it so that custom colors in Color Editor stays permanently. Meaning that when I shut down MC the colors will still be there next time I start up MC.
For example to separate the different meaning/appearance with lines added to a chart I use different colors with the same drawing tool. And sometimes the default colors, for example used with other elements, are not enough to separate them from each other. Personally this means that I adjust the colors to appear with different intensity. Like appearing stronger than "this element", but not stronger than the third.  Another example is with the new Volume Profile chart where I extend the POC line into next session with a horizontal trendline. This has to be with the same color as the POC line so I don't confuse it with my regular set horizontal trend lines.
Thanks,
Laurentius