How to set up Auto approving for all approval stages if same approver is assigned for all stages

I want to inquire regarding the Approval workflow process for PPM module.

Currently, we have 6 different stages (stage 10,20,30,40,50,60) of approval in our workflow. Usually we will have different approvers in different approval stages. E.g. Approver A in stage 10, approver B in stage 20. However in the current environment, we have not prepared all the user accounts for all levels, and for user training purposes, we decided to assign same approver in all stages of approval. E.g. Approver A in stage 10,20,30,40,50,60. With this setting, when the approval request is submitted, this Approver A receives notifications and has to approve every single stage of approval process.