Launch several PDFs

From what I can tell from just trying it with one of my own programs, it appears to be an Adobe Acrobat function and not something you can control within Lectora. I did notice however, that if you close, using the little gray X, the top document the first one opened, etc. are still behind it in that same box. So they are all still open; it is just letting you view the most recent one on top.From what I can tell from just trying it with one of my own programs, it appears to be an Adobe Acrobat function and not something you can control within Lectora. I did notice however, that if you close, using the little gray X, the top document the first one opened, etc. are still behind it in that same box. So they are all still open; it is just letting you view the most recent one on top.