0.86 MacOS Issues with preview window

[RennefJ]

XnView: MP 0.86 -64 bit
OS: MacOS 10.12.6 64bit

I noticed several issues with the preview window in MacOS compared to the Windows version

- After opening a preview window by invoking cmd_showPreview via Shortcut the preview window cannot be closed by invoking the shortcut again.
(The preview is open in a seperate windows)
- In a preview window the image cannot be zoomed or moved around.

Effect: The preview function on MacOS is not very convenient to use. For a Cross Platform Software the behaviour should be the same on all platforms.

To reproduce:
1. Assign a shortcut cmd_showPreview
2. Select an image in the browser view
3. invoke the cmd_showPreview shortcut
4. try to zoom the image or move it around -> does not work
5. invoke the cmd_showPreview shortcut again -> preview does not close

Actual behaviour (bug): Preview window cannot be close by invoking the preview shortcut again (Preview is open in a seperate window). In the preview screen the image cannot be zoomed or moved around

Expected behaviour: The preview window closes on invoking the preview shortcut. The image in the preview window can be zoomed and moved around.

[xnview]

Preview is in a separate window?? Do you have moved the preview pane outside main window? Could you post a screenshot?

[RennefJ]

Yes, preview in a seperate window.
It seems the seperate window gets the focus and then the shortcut does not work anymore.
One addition, the preview window does not have a maximise button to adjust the window to the whole screen.
And one correction, panning around and zooming images seems to work in the preview window using the mouse and the context menu.
But zooming with the keyboard shortcuts also does not work or I am using the wrong shortcuts.

[xnview]

right, for the zoom key, works only if the focus is in the browser window.