"Take note" preference missing

I found that there is a new take note-possibillity in DTPO pb 8. In the Help menue I found that there is a new preference for that.

But here in my preferences this “Take note” preference is missing (although there is a command in the Tools-menue.)

The yellow-post it icon is missing, look …
missing take note preference.png

Where it is?

There is only a preference pane in the Personal version of DEVONthink. In the Pro (Office) version there are no preferences for this tool.

That means, that I cannot assign any shortcut?

No. Unless you assign a keyboard shortcut for the title in the System Preferences.