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      <title>Object-&gt;Inheritance List and Update List</title>
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      <div class="title_topic4" id="xps10_pagetitle">Object-&gt;Inheritance List and Update List</div>
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      <p class="para_topic">The Operation Navigator allows parameters to be passed down or inherited from group to group and from group to operation. Inheritance List indicates which parameters are inherited and which ones are not inherited for a specified object in the Operation Navigator. </p>
      <div class="title_division">Where do I find it?</div>
      <p class="para_division">There are two ways to access the inheritance list. Either select Details in the Operation Navigator and the system displays the  <a class="links" href="javascript:void(0)" onclick="top.openFile('mfggeneral/opnav_details_panel.html');return(false);">Details Panel</a> which contains the Inheritance list. Or select MB3 on the operation&rarr; Object&rarr; Inheritance List. To access Update List select MB3 on the operation&rarr; Object&rarr; Update List.
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      <p class="para_division">Inherited parameters are denoted in the list by a check mark and a parent name. The parameter name, parent name, and parameter value (or parameter option such as solid/dash/silhouette or on/off) for all parameters are greyed out indicating that parameters may not be changed in this dialog box.</p>
      <p class="para_division">Parameters that are not inherited do not display a check mark. You may activate inheritance and display a check mark by clicking in the check box.</p>
      <p class="para_division">To override inheritance, you must dismiss the Inheritance List and specify the desired parameter in the appropriate operation or group dialog box. Inheritance cannot be overridden by clicking in the check box to remove the check mark.</p>
      <p class="para_division">Update List displays a list of all parameters that have been changed since operations were last generated or posted. If you select an operation or a group in the Operation Navigator and choose Object&gt;Update List, you will list the parameters which were updated since the last tool path generation or postprocessing. Each operation in the Information window listing will display &quot;Need to Post&quot; or &quot;Need to Generate&quot;. Parameters will be listed by &quot;Affect Tool Path&quot; or &quot;Affect Machine Output&quot;. Once you regenerate and repost (Output CLSF icon in the tool bar) the operations as needed, the prompt will read &quot;Complete&quot;, indicating that all parameters in the operation are currently not updated.</p>
      <p class="para_division">The following figure illustrates the Inheritance List for the WALL operation. The Display Options Tool parameter (a) is inherited from the MILL-0.25 group.</p>
      <p align="center"><img align="bottom" src="graphics/ont_inheritancfi02.gif"></p>
      <p class="para_division">To override the inheritance and specify a new parameter value (or in this case, a new parameter option), dismiss the Inheritance List dialog and edit the Tool Display for WALL as illustrated below.</p>
      <p align="center"><img align="bottom" src="graphics/ont_camfi33.gif"></p>
      <p class="para_division">When redisplayed, the Inheritance List now groups the Display Options Tool parameter (b) with the uninherited parameters and no longer indicates a check mark.</p>
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                  <p class="para_tip_body">The inheritance status of many parameters is shown by the <b class="uiTerm">Inheritance Status</b> icon <img align="bottom" src="graphics/com_inher_status_inher.gif" border="0"> beside the parameter in those dialogs where this feature is available. For more information on using the <b class="uiTerm">Inheritance Status</b> icon, see <a class="links" href="javascript:void(0)" onclick="top.openFile('mfggeneral/parent_meth_inheri.html#parent_inher_status_icon');return(false);">The Inheritance Status Icon</a>.
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