I am wondering how to best design the list box to allow for multiple selection? I have 4 items i need to have in the box but how do i best communicate it to the end user that they can select more than one or need to select more than one option and how they do that?
You could put a tooltip on the box that says something like: "Choose all options that apply". This will appear when the user hovers over the field,
Is that acceptable?