You can now add time to knocked player timers by using /revive add Seconds/Minutes <Amount> <Radius>. Within the given radius knocked players will be given time. This is an operator function and needs a specific permission. I added that permission to the settings YML where you can adjust it if needed.
You can now toggle whether knocked players will have the glowing effect in the settings menu
Let me know about any bugs/errors or update ideas in the Recourse Discussion. Thank you!