User lookup filter. The placeholder `{login}` will be replaced by the user supplied login.
### `MB_LOAD_ANALYTICS_CONTENT`
Type: Boolean<br>
Default: True
If you want to exclude the [Metabase analytics](../usage-and-performance-tools/usage-analytics.md) collection, you can set `MB_LOAD_ANALYTICS_CONTENT=false`. Setting this environment variable to false can also come in handy when migrating environments, as it can simplify the migration process.
### `MB_LOADING_MESSAGE`
Only available on Metabase [Pro](https://www.metabase.com/product/pro) and [Enterprise](https://www.metabase.com/product/enterprise) plans.<br>