I like the Dashboard.
How could I use it (or a similar app) in order to inform my users (eventually only a group of users) about e.g. events or organisational changes ?
e.g. “Tomorrow is Meeting with …” or “Friday 11-02: open doors at…”
I think the app ‘announcements’ and the dashboard plugin for announcements fulfils your needs.
If you want to inform only about appointments you can also create a calendar put your notifications there, share the calendar with everyone/group/etc. and they should be able to see the appointments in the upcoming events widget on the dash.
tHANKS dAPHNE; YES ANNOUNCEMENTS looks good :->