Good day all

I was hoping to get some much needed changes to my UI (using Preacher's UI compendium atm) all in all happy with it I really do like Elvui+Shadow and light, but there are certain things that I would like to change as in cast timers/warnings of incoming boss abilities the bars that I have doesn't stay long like 10sec before it should cast the bar goes away :/ and is there a way to have a cast bar on the boss health bar? having to change the camera angle the whole time to see the health bar on top of the boss is an irritation. What addon can I use to show combat text, procs, heals etc.... float next to my character?

Thanks