In Calendar view, there is a mouse over tooltip message showing the columns of a row.
But it shows all columns of a row including hidden columns.
Dear @Changjun_Lim , great to see you back in the community
Just make a table where you put all the info you want to have, including the hidden column.
The “hidden column” you hide, like you did in your sample.
Then create a view of this table and set it to calendar view, and the hidden info won’t be visible in the calendar.
See screenshots below:
