Hi, i want to create in Open Order View (Open Order Processing) a Dropdown List where i can select a ORDER_ITEM Record which sets the X-Axis on a Graph. My problem is that it doesnt accept the variable as an axis, but if i use the record itself

Hi, i want to create in Open Order View (Open Order Processing) a Dropdown List where i can select a ORDER_ITEM Record which sets the X-Axis on a Graph. My problem is that it doesnt accept the variable as an axis, but if i use the record itself it works