Hello MaggieMae,
To feed the kitties, you only need one bowl (the 'double' one, showing kibble in one bowl & water in the other, coming from the box of food - Empty bowls are decoration only).
Just rez the food in range of the kitties home point (where they were rezzed the very first time, unless you changed it since then) and the kitties will all eat from the same bowl.
Once the bowl is empty, it just disappears.
And welcome to KittyCatS !