The main idea is to add a list of CLASSes, then add PUPILs to each CLASS entry. Afterwards we want to add TESTs entries to each PUPIL entry.
Look below, we added a CLASS entry named "History" to the EC5 HIERARCHY PROJECT. More on add an entry.
When an entry for a form is added, and there is a child/linked form, an arrow button appears next to the entry when viewing the list of entries. We added a CLASS entry named "History".
On larger screens like a tablet, or when the device is in landscape mode, the name of the linked form also appears. Our child/linked form is named PUPIL.
Tapping the PUPIL button takes you to the PUPIL form, where you can add child entries to the "History" CLASS entry. I might have many PUPILs for that class, as "History" is popular! Tap the "Add Entry" button on the top right and add your entry.
We added a PUPIL entry named "Mirko" and it appears as a child entry of "History". At this point, following the same steps, I can either add another PUPIL entry or go a level furtherdown my forms hierarchy to add a TEST entry for a PUPIL.
On larger screens or landscape mode, the name of the linked form appears.