JDownloader

When pressing alt tab to return to J download or restoring it from a minimized state,the active focus always goes to the tab bar, meaning the keyboard only responds to keys like control tab while the tab bar is the active focus. I would like to change that so the active focus goes to the list of files instead, so I can immediately press keys like page up page down home and select all etc. instead of having to click on the file list area to make that the active focus of the application. Thank you