[DOC #42] extended the help a little bit

doc/qt4gui/help/OpenWalnutHelp.html

@@ -83,25 +83,25 @@ modules.
 
 <h2><a name="Toolbar" />Toolbar</h2>
 <table>
-<tr><td><b>Icon</b></td><td><b>Name</b></td><td><b>Description</b></td></tr>
+<tr><td><b>Icon&nbsp;</b></td><td><b>Name</b></td><td><b>Description</b></td></tr>
 
 <tr><td><img src="icons/fileopen.png" width="20"></td><td>Load
-    Data</td><td>Loads data given in various formats like fibers (.fib), NIfTI
+    Dataset</td><td>Loads data given in various formats like fibers (.fib), NIfTI
     images (.nii, .nii.gz) or EEG data (.cnt). Not all supported file formats
     are available through this button and the dialog behind it. For some file
     formats there are special modules for reading and/or writing them.</td></tr>
-<tr><td><img src="icons/projOpen.png" width="20"></td><td>Load a project from
-    file</td><td>Opens a project file (.owp), and instantiates modules, sets their
+<tr><td><img src="icons/projOpen.png" width="20"></td><td>Load Project</td><td>Opens a project file (.owp), and instantiates modules, sets their
     connections and orients the scene accordingly.</td></tr>
-<tr><td><img src="icons/disc.png" width="20"></td><td>Save current project to
-    file</td><td>Saves the current state (modules, connections, orientation of
+<tr><td><img src="icons/disc.png" width="20"></td><td>Save Project</td><td>Saves the current state (modules, connections, orientation of
     the scene) of OpenWalnut to a project file (.owp).</td></tr>
-<tr><td><img src="icons/camera.png" width="20"></td><td>Reset main view</td><td>Rotates
+<tr><td><img src="icons/image.png"
+             width="20"></td><td>Screenshot</td><td>Stores a snapshot image of
+    the main view.</td></tr>
+<tr><td><img src="icons/camera.png" width="20"></td><td>Reset</td><td>Rotates
     and scales the scene in the central 3D view to show the same orientation as
     after program startup but zoomed to show all contents of the
     scene.</td></tr>
-<tr><td><img src="icons/box.png" width="20"></td><td>Create new
-    ROI box</td><td>Adds a new ROI box to the 3D scene and the ROI browser. See also: <a href="#ROIs">ROIs</a>.</td></tr>
+<tr><td><img src="icons/box.png" width="20"></td><td>ROI</td><td>Adds a new ROI box to the 3D scene and the ROI browser. See also: <a href="#ROIs">ROIs</a>.</td></tr>
 <tr><td><img src="icons/QuestionMarks.xpm" width="20"></td><td>Missing
     module?</td><td>This opens the dialog that allows to customize the list of
     modules that are allowed to appear in the <i>Compatible Modules</i> toolbar.</td></tr>