Configure continuous crawl on an existing content source

I’m working on a SharePoint farm where documents don’t appear in search results until the next day.  To ensure they appear in search results within one hour of being uploaded I will configure a continuous crawl on the content source:

1. In Central Administration, under Application Management, click Manage Service Applications
2. Click the Search Service Application
3. Click Content Sources
4. Click the required content source in the list
5. Under Crawl Schedules select Enable Continuous Crawl
6. Click OK