I have one license I purchased last year and installed on my desktop. It is not clear to me if I can install on my laptop also? And, if I do that, will my settings sync between my two installations?
From here:
f you bought Opus for home use then yes, you can. Standard Opus licences come with a single free personal laptop licence. The free laptop licence is for personal use only; if you purchased Opus for business use (including under the GOLP corporate licencing scheme) then it doesn't apply.
And
Personal licences for Opus include a single free personal laptop licence, in addition to the number of installs purchased. The idea being, you buy a licence to use on your desktop and you can also install it on your laptop as well. If you have two desktops and no laptop then that's fine, we don't mind if you use your laptop licence on a desktop.
But I don't know if this is currently still allowed. (I assume this is up to date).