One source of data and 2 display forms

Question

I have one data source that is processed by Form1 app. I wish to split the input data and display some data on Form1 using a listbox control (already done) and display the remaining data on Form2 also using a listbox control and update both forms at the same time. Is their a way to globalize the Form2 listbox control to access it from Form1 app. Thanks for your help.