every SERVER license is a standalone license...
there is the tool ADNM which manages the licenses, but avast sales has to make the license file for your licenses so ADNM recognises the licenses
the tool ADNM will not recognise regular server licenses or installations, so in order to be able to manage the licenses/server protection from a central server you need to use ADNM and install the netserver package on all the servers....
if you purchased in total 14 (4 + 10) you can request a license file at your reseller or avast support/sales....