Day of the week in grid view

There isn’t a simple way to do that. You could add custom JS to replace the abbreviations or you can add a filter to the mc_get_week_days filter.

https://joedolson.github.io/my-calendar/mc_get_week_days.html

Got this, thank you!

Not much of a coder – can’t I just set $start_of_week = 0?

tx,
Kathy