Dynamic VPN for remote workers

Good morning,

I have a simple question. We have a number of users that are working from home that would need temporary access to network resources in the office which is using SRX device as a gateway device. My question is this, is dynamic VPN supported by Juniper today? would I be able to deploy it as described in the article below, is this document still valid? My understanding is that SRX comes with 2 dynamic VPN client licenses, is there anything else required ?

I'm using as a reference the links below, please take a look.
Document:
http://kb.juniper.net/library/CUSTOMERSERVICE/GLOBAL_JTAC/technotes/dynamic-vpn-appnote-junos10.4-v21.pdf
Video:
https://www.youtube.com/watch?v=J1C4300zMBU

Thank you for any information.
Delmiro