Nostalrius Begins - Quality wow vanilla realm (1.12)

hello, i was wondering if anyone knows a way to switch between the actionbars 1-2 on the default actionbars by holding down a button and releasing. what i mean is i want to be able to hold down middle mouse button and when i do so i access page 2 then when i release middle mouse it switches back to page 1? wany way to do this?

thanks

I use Bartender2 almost entirely because of this. I couldn't find a way to make it happen with the default UI. Of course the last time I tried was almost a decade ago. Used Bartender ever since. It also auto-pages for certain things like stance changing or targeting a friendly unit. All of the paging features can be tuned to your liking.