- Sensitivity of fields and buttons (Bugs)
When opening the print dialog, one can edit the page header and footer although the checkbox for page header / footer are deactivated.

When deactivating the checkbox, the appropriate button "Insert" should be deactivated, too.

- Checkbox for "Heading"
The fields "Page header" and "Page footer" have a checkbox to enable/disable the page header/footer. This allows for temporarily hiding the footer/header without loosing all variables. The same should apply for the "Heading", there also should be a checkbox.
- Spin buttons or drop down list for orientation of watermark
Spin buttons or an dropdowncombobox with predefined values for the orientation of the watermark would make handling with mouse easier.
- Rotation angle should range -180 ... +180
Currently the rotation angle of the watermark ranges from 0...359. Instead it should range from -180 ... + 180 (similar to rotation dialog).
- Consistent control for font selection
On tab "Header/Footer" the font can be control using a button "Font", whereas on page "Watermark" there is a button "Choose...". On page "Caption" the font and the font button are aligned differently.
Note:
Normally I ask people to post one issue per topic. The above issues are all very related and need not much discussion, this is why I have placed them in on post.