Turn on support for multiple content types in a list or library

Turn on multiple content types in a list

1. Open the list or calendar for which you want to enable multiple content types.
2. On the ribbon, under List Tools, click the List tab.
3. In the Settings group, click List settings.
4. In the General Settings section, select Advanced Settings.
5. In the Content Types section, click Yes under Allow management of content types?
6. Change any other settings that you want, and then click OK.