[Walkerbo]

Hi Xrystal

You cracked it.

-- hook heirloom tab button
    hooksecurefunc(
        "CollectionsJournal_UpdateSelectedTab",
        function()
            if HeirloomsJournal:IsVisible() then
                ToggleCollectionsJournal(1)
            end
        end
    )

Thanks to all for your help.