I am afraid BuffBars will not allow him to do what was described.
And even worse, as plugins have no access to the cooldown data of skills, this would be only possible for skills that actually put a buff on you - i.e. if you use Controlled Burn the buff shows up in your bars and a 10 min timer could be started. The info how long the timer has to be would have to be set manually however, or hardcoded into the plugin.
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