This is the RowStatus control for one entry in the maximum-transmit-PSD ceiling table, letting an operator add or remove a hard power cap at a specific tone independently of the rest of the profile's power-ceiling entries. It's used the same way as the target-PSD row status but governs the regulatory-style ceiling table specifically, which typically changes less often since it usually reflects fixed compliance requirements rather than day-to-day tuning. Modifying entries here is the kind of change that would typically follow a regulatory or spectrum-compatibility mandate rather than routine performance tuning.