Traffic light in Lobby list

Hi together,

I want to create a list with POs with a red/green light (status), see example picture:

For this, I created an IAL with the relevant sources. Now I want to insert the status light after the PO numbers (like in the picture), but I don´t how/what code to insert to get the status light in the list (green light=no open POs, red light=open PO). For the status lights I inserted in the IAL an count-command:

Is anybody familiar with combining written list elements with status lights (see ECR, ANC and AUC)? (Environment App10).

Thank you in advance.

Regards Markus