What can I do with the buttons under ‘More actions’ in Jitsi?

Via the ‘More actions’ button, you can control several things.

Knop voor het uitnodigen van deelnemers This button allows you to invite/add people to the meeting.
Knop om je achtergrond in te stellen This button allows you to customise the background of your own video.
Knop om de prestatie-instellingen te regelen With this button you can change the performance settings.
Knop om de sprekerstatistieken in te zien With this button you can see the speaker statistics.
Knop om full screen modus aan te zetten With this button you can set the meeting to full screen. With the Esc key on your keyboard you can close it again.
Knop om bij het instellingen-menu te komen This button takes you to the Settings menu.
Knop voor het instellen van beveiligingsopties With this button you can adjust the security options, such as enabling a lobby or setting a password for the meeting.
Knop om alle sneltoetsen te zien With this button you can see the shortcuts in Jitsi.
Knop om een video te delen This button allows you to share a video via a YouTube link or direct video link. Pressing the button again will stop sharing the video.
Embed This button allows you to embed the meeting on a web page using HTML code.
Ruisonderdrukking aan/uitzetten With this button you can enable noise reduction for your own microphone.