It's not possible. You can write a script that will do it for you.
Do you mean I have to add a hook to the register function in the source code or else? Would you please describe it in more detail or provide me a link.
Thanks.
No, I'm suggesting you use API from any scripting language to do the linking for you. API documentation:
When (or more precisely where) do I call the API? How to know if a new user is signed on?
I think you are missing the point. I'm suggesting that you link device to every user via script once, not call it every time user logs in.
However, my clients are not registered at once, but gradually. As I understand, I have to run the script on a regular basis to link the newly registered ones to the public device. Correct?
Yes, in that case you need to do it for every new user.
Thanks.
Is there any way to make a device publicly available for any registered user? In other words, I want any registered user can see the chosen device by default since my users are more than 700 people and assigning a (fixed) device to them by hand is difficult.