Hey Liam,
Thanks for reaching out to us and for your interest in our plugins!
First of all please take a look at Licenses for multisites knowledgebase article. Basically the answers is yes, but there are some caveats:
If you only want to use our plugin on a handful of subsites (10 or fewer) and are willing to perform *manual updates*, then you do not need a multisite license. In this case you can purchase a Personal license (for 1 subsite), Business license (for 2-3 subsites) or an Agency license (for 4-10 subsites).
Note: If you use a Personal, Business, or Agency License for a site on a Multitsite Network, you may see a Disconnection notice in your account on this site when you log in and go to My Account –> License Keys. You can ignore this. We are working to improve this messaging and functionality.
Please let me know if you still have questions on this,
Best,
Nico