Add Operator Image:
If your theme do not have any option to add user image. Here https://wordpress.org/plugins/wp-user-avatar/ is a great plugin to add image to any user. You can install it from your wp-admin panel plugin section. Just search for “wp-user-avatar” to install.
The reason I did not include this feature is that most of the service based wordpress theme have image upload feature. I did not wanted to make a heavier plugin rather a light one. You can also disable “wp-user-avatar” plugin after uploading the operator images. So that you site become light and run faster.
After installing this plugin just go all users and edit user. You will will find a image upload button at the bottom. You will also find this upload button when add operator.