Reset license for freelance plus on new laptop and keep in desktop when available 0

Hi, there.


I have Studio 2017 Freelance Plus. I am traveling abroad a lot now and I must buy a laptop and install my license in the laptop.
A knowledgeable and experienced user told me to RESET LICENSE or ask for a reset, and download to my new laptop. I was assured that I will be able to continue working on my current, long Project in my desktop, however, I need to feel reassured in the steps I need to take.

Questions:
1 What should I do to install in the laptop since I have Freelance Plus, because I see AVAILABLE 0? 
2 Can I work on both devices simultaneously (unlikely but maybe two urgent projects)?
3 If otherwise, is there anything I should do, like “deactivate”-“activate” and viceversa EACH time I alternate devices?

Thanks a lot for your help.