Urgent - CHM Child Project Now Showing in Output

Hello,

I am trying to create a merged help. I am able to add the .chm child project to the master project (see snippet below). However, when I generate the master project, the child does not show. Is there an extra step after adding the .chm file to the master to allow the child to be viewed in the output? If yes, what is that step and how is it done?

Thanks.