Dont think there is one, you could ofc get my (old & no longer supported by me) Dungeonfarmer plugin.
Farms a dungeon X minutes, walks out, reset
If in a party, the party leader must be a high level, the others will follow at a safe distance.
When the timer hits, they will all walk out and wait for eachother at the entrance.
On the to-be-boosted alts, click the "Powerboost this char" option
Not many profiles included, i hate writing profiles