f.addElement("pos.coorVX", FormHelper.setEnabeldWhenRightElementSelect(c,
new FormSwitchVarSelector(e.getYecl().getProject(), "Var X", e.getParameters(), 4, Type.VARIABLE), "1"));
f.addElement("pos.coorVY", FormHelper.setEnabeldWhenRightElementSelect(c,
new FormSwitchVarSelector(e.getYecl().getProject(), "Var Y", e.getParameters(), 5, Type.VARIABLE), "1"));
c.informListeners();
// add zoom
f.addHeader("another", new FormHeader(I18N.t("Sonstiges"), "dummy").setSorting(2).setColumn(4).setCollapsed(true));
f.addElement("another.zoomX", RubyForm.getNumber("Zoom X", e.getParameters(), 6));
f.addElement("another.zoomY", RubyForm.getNumber("Zoom Y", e.getParameters(), 7));