In this form, i would like the user to click the "submit " button, or else it will only save as draft or stays in new request stage. After clicking the submit button, it will automatically proceed to next stage "For approval", in which the department head and admin management's approval is needed. Before it proceeds to next stage "On Progress", those two is needed, not only one of them but two of them, and the form filled up by the requestor will be lock and cannot be change the values they've input. Then, after the two approval given, it will automatically proceed to, "on progress" which is my responsibility. Then, done. 

Also, they are not allowed to change the stages. It needs to be in flow. So, i disabled the clickable pipeline.

To summarize the flow: 

1. Create a request form.
2. Needs to submit to proceed in "for approval" stage.
3. Needs the approval of 2, to proceed in "on progress" stage and the form will be locked and forbidden to be edit by anyone else.
4. Needs my approval, to proceed in "done".