If you are interested in building or modifying Lansweeper reports, we recommend:
Using AI to help you build queries. AI will work with either SQL reports (On-prem Report Builder) or GraphQL/MongoDB reports (Cloud Report Builder). More info can be found in this link: Utilizing Lansweeper Documentation With AI - Lansweeper
Reviewing some SQL tutorials, as the Lansweeper report builder (for Lansweeper on-prem) is a standard SQL editor. If you know SQL, you know how to build Lansweeper reports as well. A quick online search will lead you to dozens of SQL tutorials, but this seems like a good tutorial: https://www.w3schools.com/sql/