# Query specific log indexes in dashboards and other improvements

> Target specific physical indexes when querying logs in dashboard panels, plus role-based access control and better gRPC operation visibility.

Source: https://last9.io/changelog/query-specific-log-indexes-in-dashboards-and-other-improvements/

### Improvements

- [**Dashboards**](https://app.last9.io/dashboards)
  - Physical index support added to dashboard panels enabling users to query logs data from specific physical storage indexes
  - Custom dashboard PromQL queries now support `$__range` variable that automatically adapts to the selected time range for rate() and increase() functions
- [**Discover Services**](https://app.last9.io/service-catalog): gRPC operations now visible in All Operations page, Outgoing calls section, and Operations Overview with full span metrics support
- [**Users**](https://app.last9.io/settings/users): Role-based access control (RBAC) implemented with Viewer and Editor roles, where Viewer access is restricted with clear tooltips indicating permission limitations

### Fixes

- In some edge cases, Pods tab in [Discover Kubernetes](https://app.last9.io/kubernetes) screen was displaying inaccurate memory and CPU usage values
- Table filters in [Discover Hosts](https://app.last9.io/hosts) were not persisting correctly in URL parameters