If a diary group is empty, the group bar is a darker shade of grey and the touch and drag to bring up the blue gear to paste items into the group seems to be unavailable.
Thanks @PresenceGuy for this and the other bugts you mentioned recently. I have logged those other ones, but this one is a framework issue that we are waiting on support for. As soon as we get an update that supports it,, we will put it in the app
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aaaaannnnd I mis-read that. Its a legit bug on our end Thanks dude!