No, I've given up. I am afraid I find the user interface completely unintuitive. At least when it was first installed there was an [X] button to close windows; now, following the installation of Total Installer, even that one button has disappeared, and once I am in (for example) "Settings", there is no visible way out again. I am sure that programs that offer no visible options are fine for some, but for me, any program that does not offer the traditional "File / Edit / View / Tools / Windows / etc" options is unusable. Modern flat-screen display are so large that there are /acres/ of room for navigation aids; why anyone would write a program that takes over the whole screen yet offers no visible navigation aids at all is completely beyond me. It's a generational thing, I am sure.
** Phil.