Here’s the rewritten version of the question:

"For users managing only a few servers, such as 3 or 5, and subscribed to Tier 3, how can they enable the Service Monitoring feature without upgrading to Tier 5? It seems impractical for users with a small number of servers to upgrade to a higher tier meant for up to 100 servers, just to access this specific feature. Could you consider offering the option to add Service Monitoring as an add-on feature, without requiring an upgrade to a higher tier?"