note. sometimes in the forum if the text is not in a code block, these characters are shown as word processing form , curved, like this
’
or
"
Instead of the text form

' or "

’
I also have a fundamental question of understanding.
The ’ character is used in the examples here.
I have to use the character " for it to work.
Why is that?

I installed this, but unfortunately there was no improvement in the result.
If I enter it like in the example, there are no more entries.

The points for the appointments are only displayed correctly in the mini calendar.

Here is my config for the module.

{
      module: "MMM-CalendarExt3Agenda",
      carouselId: "Seite2",
      position: "top_left",
      header: "Natalia",
      config: {
      instanceId: "basicCalendar",
      locale: 'de-DE',
      firstDayOfWeek: 1,
      startDayIndex: -1,
		  endDayIndex: 15,
      onlyEventDays: 15,
      eventFilter: (ev) => {
	         return (ev.title.search("Natalia:") > -1)
      },
      eventTransformer: (ev) => {
	         ev.title = ev.title.replace("Natalia:", "")
	         return ev
     }
     }
     },

Anyway, here is my example.

eventFilter: (ev) => {
	return (ev.title.search('Test') > -1)
},
eventTransformer: (ev) => {
	ev.title = ev.title.replace('Test', '@')
	return ev
}

This code means

1. Filter out all other events except the event which has Test in the title.
2. Then transform Test to @.

You can see the result below;

ORIGINAL

CONFIGURED

1. Only events which have title “Natalia” would be shown, others should be filtered out.
2. Then the event (with title “Natalia”) should change its title. Right?