Tracking separate hp with Aura/Tint HealthColor and TokenNameNumber

I have a group of 8 zombies numbered 1-8 using TokenNameNumber. I want to display each token's individual hp using Aura/Tint HealthColor. The problem that I'm having is that now all tokens are sharing an hp pool rather than each having their own individual hp pool. How can I use Aura/Tint HealthColor with a group of the same monster without having them all share the same hp pool?

<a href="https://wiki.roll20.net/Linking_Tokens_to_Journals" rel="nofollow">https://wiki.roll20.net/Linking_Tokens_to_Journals</a> Step 4B: make sure that the ‘hp’ value is not &nbsp;linked on those tokens.&nbsp;

Much appreciated, that sorted it.