How to edit multiple sheets at the same time?

Question

Google Apps Script

There is a book with 10 pages. What these sheets have in common is the design of the month (dates, weekends, workdays), the rest of the data is different.

I would like to understand how, when editing the first sheet, the design automatically changed in the rest?
Can this be done with Google Apps Script?

Answer 1

Unfortunately, even programmatically, not all formatting is copied.
Haven't seen a single good addition to this. Perhaps, for your needs, you can write a simple (or not so) script.
Try recording a macro.