BE 2012 low disk space

Hello,

We are currently using Backup Exec 2012, BE is patched and installed on WinSrv 2008R2. The problem is that the drives for B2D are full. Each backup job that is backing up to that disk is set to keep data for 2 days. In the media tab of that storage under Overwrite Protection Period we have "Infinite - Do not overwrite". Where can I change this? In older versions of BE there was a option to set overwrite, append, or overwrite if no appended media is present for backups to B2D?

Thanks and regards,

Dario