STEP 1
Use appropriate login credentials to access the admin panel and go to "Accounts and Settings". You will find the "User" option; click on it to see the page that appears like the image given below. Click on the blue icon on the right side of the user details.
STEP 2
You will be directed to a page like the one in the below image. Click on the edit icon highlighted in the below image, and choose an image from your device to set as a profile picture.
STEP 3
New tabs that were not present earlier, can now be seen when creating the new user, like the appointment tab, working, and vacation schedule tab.