[Xrystal]

Good News:

This mini addon worked great, as long as it was a special bar, then again, like I said I have yet been able to figure out page swapping properly yet even with the druid forms. Now to check to see if the page idea will work with nUI.

edit: Added screenshots of mini addon working alongside regular blizz and with nUI 5 and as you can see nUI 5 isn't switching with the page switching macro conditional.

local addonName,addonData = ...
 
local actionBarFrame = CreateFrame("Frame","XUI_ActionBar_Frame",UIParent,"SecureHandlerStateTemplate,SecureHandlerAttributeTemplate,SecureHandlerShowHideTemplate")
local eventFrame = CreateFrame("Frame","XUI_ActionBar_Events")
 
local function CheckEvents(self,event,...)
    local args = { ... }
    
    if ( event == "ADDON_LOADED" and args[1] == addonName ) then
        actionBarFrame:SetPoint("CENTER",UIParent,"CENTER",0,0)
        actionBarFrame:SetAttribute( "XUI_ActionType","ACTIONBUTTON" )
        
        -- As a standalone Action Bar
        actionBarFrame:SetAttribute( "actionpage", GetTempShapeshiftBarIndex() );
        
        -- As a page on the Main Action Bar
        --actionBarFrame:SetAttribute( "actionpage", 1 );
        
        actionBarFrame.Buttons = { }
        local lastButton = nil
        for i = 1,12 do
            actionBarFrame.Buttons[i] = CreateFrame("CheckButton","$parent_Button_"..i,actionBarFrame,"SecureActionButtonTemplate,ActionBarButtonTemplate")
            actionBarFrame.Buttons[i]:SetID(i)
            actionBarFrame.Buttons[i]:SetAttribute("action", i );
            actionBarFrame.Buttons[i]:Show()
            if ( lastButton ) then
                actionBarFrame.Buttons[i]:SetPoint("TOPLEFT",actionBarFrame.Buttons[i-1],"TOPRIGHT",1,0)
            else
                actionBarFrame.Buttons[i]:SetPoint("TOPLEFT",actionBarFrame,"TOPLEFT",1,0)
            end
            lastButton = actionBarFrame.Buttons[i]
            ActionButton_UpdateAction(lastButton);
        end
        
        -- As a standalone Action Bar
        RegisterStateDriver( actionBarFrame, "visibility", "[petbattle] hide; [shapeshift] show" );
        
        -- As a page on the Main Action Bar
        --RegisterStateDriver( actionBarFrame, "visibility", "[petbattle] hide; show" );
 
        actionBarFrame:Execute(
            [[
                ChildList     = newtable( self:GetChildren() );
                ActionButtons = newtable();
                actionType    = self:GetAttribute( "XUI_ActionType" );
                
                local j = 1;
                
                for i, child in ipairs( ChildList ) do
                    if child:GetAttribute( "XUI_ActionType" ) then
                        ActionButtons[j] = child;
                        j = j+1;
                    end
                end
            ]]
        );
 
        -- As a page on the Main Action Bar
        --RegisterStateDriver(actionBarFrame, "page", "[vehicleui] GetVehicleBarIndex(); [shapeshift] GetTempShapeshiftBarIndex(); [extrabar] GetExtraBarIndex(); [overridebar] GetOverrideBarIndex(); [bar:2] 2; [bar:3] 3; [bar:4] 4; [bar:5] 5; [bar:6] 6; [bonusbar:1] 7; [bonusbar:2] 8; [bonusbar:3] 9; [bonusbar:4] 10; [bonusbar:5] 11;1" );
        
        actionBarFrame:Show()
 
    end
    
end
 
eventFrame:RegisterEvent("ACTIONBAR_UPDATE_STATE")
eventFrame:RegisterEvent("ADDON_LOADED")
eventFrame:RegisterEvent("ACTIONBAR_PAGE_CHANGED")
eventFrame:RegisterEvent("UPDATE_BONUS_ACTIONBAR")
eventFrame:RegisterEvent("UPDATE_VEHICLE_ACTIONBAR")
eventFrame:RegisterEvent("UPDATE_OVERRIDE_ACTIONBAR")
eventFrame:RegisterEvent("UPDATE_SHAPESHIFT_FORM")
eventFrame:RegisterEvent("UPDATE_POSSESS_BAR")
eventFrame:RegisterEvent("UPDATE_EXTRA_ACTIONBAR")
 
eventFrame:SetScript("OnEvent",CheckEvents)