The option windows behave oddly when you try to resize them - I believe this is a bug in the Mac version of MC.
Once you "miss" the lower part of such a window (rename, options) there are two things to try (an easy one and one a bit less so):
(1) You could double click on the title bar of the window to enlarge it to the screens full size. This will force the window contents to be redrawn and all of its elements should be shown. Or alternatively you set the window to full screen (the maximize button in the title bar); while the MC main window does not allow this, it works for those extra windows.
It's not a perfect work around because you will probably not get the window back to its original small size.
(2) You delete the respective
Window Placement -
entries in the
user.ini
(you find this file in the Application Support folder of JRiver ...)
This resets window positions and you should see all content again.
Well, option (3) would be: JRiver takes care of it and does some code wizardry. Maybe they will.
Maybe someone else has found yet another way and will let us know.