As a admin, currently do not find any automation rule to configure approve ticket by comment when it is pending for approval. how it should work, when ticket is pending for approval, approvers see the approve workflow step, and they have to click on approve workflow step to approve the ticket, it is a cumbersome to approve each ticket by opening and click on workflow action, instead, if we have provision to approve ticket by comment having word "approve", "approved", "approval", and etc. This will save time and faster way to approve tickets.
Thanks,
Ramesh