"Messages in iCloud" not appearing
So I'm sitting at two macs. A Macbook pro and an iMac.
Both are at macos 10.13.5
In iMessage preferences on the Macbook, I see the option to "Enable Messages in iCloud" (with "Sync now" button). I see:
In iMessage on the iMac, I don't see that option.
Note: Both iMessage programs say they are Version 11.0 (5500)
Is there a switch I have to flick somewhere else which turns this on? Or did my 10.13.5 upgrade run amiss (I did have some problems).
Thx,
Peter G