[myrroddin]

Sorry for the delay as I was not at home. Anyway, if I understand it correctly, if I want to clear the text (I do not want to clear the tab names themselves) of both the chat frames and their docked windows, then this will work?

for i = 1, NUM_CHAT_WINDOWS do
    local window = _G["ChatFrame"..i]
    window:Clear()
 
    -- now clear docked tabs of their text
    local chatFrame, chatTab
    for _, chatFrameName in pairs(CHAT_FRAMES) do
        local frame = _G[chatFrameName]
        chatFrame = frame
        chatTab = _G[chatFrame:GetName().."Tab"]
        chatTab:Clear()
    end
end