Ok i have a solution

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Let's get started go to Control Settings or smth like that don't remember realy and then tick the send req and write "bots" name that heals or recovers mp or what ever then below select when hp< 80% (optional) and write text heal (optional)
Now go to you're healing bot to the same control settings and tick the reseve req and write you the bots name that u want to be healed and will send
](how to send the message u can learn above)] u a message so now below write text the same as above like 1chars says heal so in others control settings bar should be heal also and select the skill that the bot will be using when he will get the message. It will look like this
Bots: Potato and Healzor
Patatoes hp is 80% omfg he need healing so he sents a pm to Healzor with the text "heal me *****"
Healzor gets the PM and uses skill "heal" that is set on to use when he see text heal me ***** in purple color.
If u need to ask something do so I'll be glad to help
Sorry for bad english (I'm form Lithuania)