We are planning to add a database aggregation tool in the future which will allow you to merge data from multiple Lansweeper databases into a single central database. Though at this moment in time we're not able to provide you with an estimated release date for this addition.
At this moment in time, merging separate Lansweeper databases would require custom scripting which we unfortunately cannot provide support for.
As mentioned earlier in this topic,
LsPush could be a functional workaround for inventorying Windows computers that don't have a direct connection to any of your scanning servers.