587 - quick viewer: cannot delete file via enter

[inglorious]

- under Tools\Settings select "user FC" for file/folder operations
- set quick viewer settings as shown below [maybe not necessary]
- select a text file
- press "delete" button on your kb
- when dialog appears press enter
=> file is deleted, ok!

now do as described but press CTRL+Q before delete.
- when delete dialog appears press enter
=> file is not deleted, bad! work-around: user mouse to close dialog