<li><b>Hide all dimensions</b> - hides all of the persistent dimensions created for the selected geometrical object.</li>
<li>\subpage dependency_tree_page "Show dependency tree" - shows dependency tree of selected objects
in new 2D View Window.</li>
+<li>\subpage reduce_study_page "Reduce study" - allows to reduce study
+by automatic removing objects according to user's options.</li>
<li><b>Dump view</b> - exports an object from the viewer in bmp, png,
jpg or jpeg image format.</li>
<li><b>Change background</b> - allows to redefine the background
