Clipboard Limit in Launchbar 6

Is it possible to increase the clipboard limit in Launchbar 6?
I modified the ClipboardHistoryCapacity in ~/Library/Preferences/at.obdev.LaunchBar.plist and set it to 99, but the limit stays at 40.

A limit of 100 - 150 would be useful as this represents about a days worth of clips.

Thanks

Scott