multiple history

hello sir/mam . I am little bit  confused about multiple history  . I had created leave form with 4 level of microflow like student , teacher, hod and principal and now I don’t know how to create multiple history for this leave form. I don’t know where to start and do it. can you tell me about accept and how to use it in leave form for all 4 levels. 
1 answers

Before you try to implement functionalities with Mendix Studio Pro, I recommend that you first go through the online Rapid Developer Course. In this course you will learn all the basics of Mendix.

It is a self-paced way to learn Mendix and it is very useful if you want to get started with Mendix.

This is the link to the course: