Shortcuts dialog

Both shortcut dialog screens offer the possibility to connect a shortcut within the main screen to a layout template.

Clicking the button next to a shortcut will open a browser for a layout template.

A number of shortcuts are also bound to a buttonbar-button

	<ctrl-shift-1> t/m <ctrl-shift-8>.
	<ctrl +> / <ctrl ->
	<ctrl-Home>, <ctrl-End>, <ctrl PageDown>, <ctrl-PageUp>
	<ctrl> <> <ctrl-> <ctrl->