Consul Template trigger when new key added

Hello there, Ive been playing around with vault and consul recently and have been trying out certain tutorials online this is one Automatically Rotate Gossip Encryption Keys Secured in Vault .

what happens here is that everytime the key changes in kv-v2/consul/config/encryption the consul template triggers and gossip key is updated in consul.

What im trying to do is everytime there is a new key in kv-v2/consul/config i need consul template to trigger and store the keys in consul.

Is there a way i can do this? Thank you