What is it?
This customfield allows to select a user depending on its Permission on the Issue (here users having the Browse Permissions) :
![](/download/attachments/2097427/image2016-8-10%2018%3A59%3A48.png?version=1&modificationDate=1470875546000&api=v2&effects=drop-shadow)
When adding a new Customfield, select the Customfield Type User Picker By Permissions :
![](/download/attachments/2097427/image2016-8-10%2018%3A49%3A28.png?version=1&modificationDate=1470875546000&api=v2&effects=drop-shadow)
Then, you will be able to configure your customfield in order to filter the User by their Permissions.
![](/download/attachments/2097427/image2016-8-10%2018%3A53%3A17.png?version=1&modificationDate=1470875546000&api=v2&effects=drop-shadow)
The selection of the required Permission can be done in the following screen :
![](/download/attachments/2097427/image2016-8-10%2018%3A56%3A58.png?version=1&modificationDate=1470875546000&api=v2&effects=drop-shadow)