Problem New event in shared calendar. Field not visible

Hello,
I have the following inconvenience, when trying to add an event from anywhere, I do not have the field available to select the calendar to which the event corresponds. It only adds the events in the personal calendar.

Screenshot: https://i.imgur.com/7dCTew6.png

I have seen in the documentation that this field is available but for some reason, it is not visible in my installation.

Please, I would really appreciate your help.

Thanks!!