Quick-fire questions
How to keep Time Machine snapshots longer?
> Snapshots made by Time Machine every hour in association with its backups are automatically deleted once they’re more than 24 hours old. There’s no way to change that, although third-party backup utilities including Carbon Copy Cloner can be set to delete their own snapshots after longer periods.
How to show custom information in Quick Look?
> Information shown below a file’s thumbnail by Quick Look is governed by the type of file concerned. Select a document of the type you want