Hi Arden
do you have the KittyCatS! Food and Milk Server 1.05?
If it's so you yust need to rez the Server, right click on it and choose EDIT or OPEN in the pie menu, then drag inside the food's and the milk's bowls.
At this point, over the Server, will appear a text that will tell you how many bowls are inside.
Then rez the Mat near the Server, left click on the Mat and choose from the menu if you want rez food and/or milk and the setting you prefer.
(if you're feeding only your cats in your sim can set SIM/MY CATS, and all your cats in the sim you are will eat, with any problem about walking or else)
Calico