2nd user for halion 6

Hy i just want to know : i intent to buy a 2nd cubse for my second laptop ; can i use my own halion 6 licence for twice pc s ?

Yes. Just move the dongle with the Halion license to the laptop.

OK but can i use it on both pc simultaneously ?

No, one license allows you to only run one instance at a time regardless of what computer is running it.