Leave request: Create new absence splitting the existing one avoiding collisions

Hi experts,

I came across with a specific requirement of my client related to leave requests. As you know in the backend TM you may customize absences that will automatically cut the previous absence and allow you to create a new absence within the same period of the previous one without having the collision error. However I found out this feature does not work using ESS Leave request (we are on EHP7 using the WDA standard application).

Example:

Absence - Breastfeeding for 1 year - 01.01.2015 - 31.12.2015

In the backend (PA30) you create a new absence (Holidays) for today 20.11.2015.

The system gives you a popup and then splits the absence for one year correctly creating the absence for today automatically.

Creating absence

Result

Creating leave request through the portal (error)

Is that possible to accomplish the same PA30 behaviour through the portal?

Thanks.

Best Regards,
AS