How can I change my profile details and picture?

In your menu you will find the item "Your profile". Below that, you can enter, delete, and change information about your position, department, and phone number voluntarily. To save the new information about you, simply click on "Save" in the upper right corner.

You can also change your profile picture: To do so, click on the lower part of your profile picture. The selection field will open directly, in which you can upload files, images or photos from your PC/tablet/smartphone.
By selecting "Delete photo" your profile picture will be removed and the original profile picture with your initials will appear.