You can add content, records, and record folders to a hold to freeze them. For records, and record folders this would also suspend their retention schedules.
You can create as many different holds as you want, which are represented as folders in the Holds area.
In the Holds area there’s a New Hold option which you use to set up your different hold types. Once you have a list of different holds you can put content, records, and, record folders on as many of the different holds as required.
You can also add records to a hold directly from your search results, see Adding search results to a hold - Records Search and Adding search results to a hold - Share searchb .
When you add a record folder to a hold, all records within the folder are also added to the hold. They’ll stay on hold until removed from the hold or the hold is deleted.
In the Holds area you can see your holds. When you go into a hold you can see the items it
contains. The items aren’t removed from the File Plan or
Collaboration site. They retain their place in the File Plan or Collaboration
site with limited actions available, and are identified as being on hold by the 
icon.
You can use the Manage Permissions option to control which users can view, create, edit, and delete holds. Users who don’t have read permission for a specific hold will not receive any indication that records it contains are in that hold.
Users with the appropriate capabilities can create multiple holds that are then used when records are put on hold.