Having Problem using list box to create a one to many relationship

Hi Everyone,

I have been trying to figure out this for about a week and i am  very new to outsystems ,i am looking to implement a small application that creates a car type(BMW) that has many features which could be the tyres,car battery etc, I will like to use the listbox to select the car features when creating the car and i have major problems using he listbox in outsystems to do so.I will appreciate if anyone can come tp my assistance
Hi Henry,

Wellcome to the community!
Have you followed the tutorial videos in the Academy? Also you can see more about that widget here.

If the difficult persits try to provide a bit more context with screenshots or  the eSpace.

Hope that helps!