Can I upgrade my routerboard license level ?

RouterOS Beginner Basics
1

Hi, I’m using a RB450 with License Level 5 with hostpot and user manager, since usermanager Lv5 limitation is for 50 users, I think that I will need License Level 6 for unlimited users.

So the question: Is the license level upgradetable for routerboards?

2

Yes, you can, other question will your RB450 be enough. More details here
To find out your SoftID

[admin@MikroTik] /system license print