Hello, I have been reading the ListBox code and I have been looking up other examples of its use but I'm still getting confused about how it is used. I want to be able to have a listbox's source array ...

FF 73.0.1 and Chrome 80.0.3987.116 on Windows 10, Example 2 does not work as advertised in the Multiple selection keys supported in example 2 table (except for space key).