Autobar is a great way to achieve this. Been using Autobar prior to me even Boxing; I have it in both of my WoW Addon Directories for each toon and the Keybinds are the same so Keyclone has them eat and drink at the same time using the conjured first if I have any and hten just vendor water based on high level first to lower if I have any. Also has my pots keybound as well and click them if I just want one toon to use it, typically my paly rather than my priest.