Hi @Darrell_Winwood and thanks for your question,
If I understood correctly, I might have a solution for you; because fields are actually shared between the different views, and you should not have to create a field specifically for the calendar view.
Are you already using the option “Colors : Type” in the calendar view, where you can select fields from your project ? (see screenshots)
Then, to save that particular configuration, you can save it by defaut (see screenshot
Remark: please note that only custom fields type = “single select” allow color on calendar view (not multi-select).
Hope that helps 