Net groups are useful when you want to change the parameters of multiple nets at the same time. Refer to the Nets Groups Tab section for more information.

Complete the following steps to create a net group:

  1. Select Tools»Group editor to display the Edit Groups dialog box.
  2. Click the Net groups tab.
  3. Click Add. The Add Group dialog box appears.
  4. Enter the desired name and click OK.

    The Change Group Settings dialog box appears.

  5. Change the settings in the Group settings area as desired.

      Refer to the Change Group Settings Dialog Box and Net Group Settings sections for more information.

  6. Click OK to return to the Net groups tab.

    The newly created group appears in the Groups list.

  7. Highlight the new group in the Groups box to display a list of nets you can add to the group in the Available nets list.
  8. Select the desired nets in the Available nets list—you can use <Ctrl> and <Shift> to select multiple items in the list.

    The Add button becomes active.

  9. Click Add. The selected nets move to the Assigned nets column.

    Or

    If desired, click Add all to move all of the Available nets to the Assigned nets list.

      You cannot assign a net to more than one net group. Therefore, nets that are already assigned to another net group do not appear in the Available nets list. However, a net that is already assigned to a net group can also be assigned to a bus group.

  10. Click OK to close the Edit Groups dialog box.

    A message displays asking if you want to change all applicable net properties for the named net to “Use Group Settings”. These are the group settings that are found in the Net groups tab of the Spreadsheet View, or the Change Group Settings dialog box.

  11. Select Yes or No.

    The message re-appears for each net that you are adding to the group, unless you select Remember my answer to this question for next time.

      You can change this setting from the Global Options dialog box. Refer to the Message Prompts Tab section for information.

Complete the following steps to add pre-selected nets to a net group:

  1. Select the desired nets on the workspace.
  2. Select Tools»Group editor to display the Edit Groups dialog box.
  3. Click the Net groups tab.
  4. Select the desired net group in the Groups box.
  5. Click Add selection.

    The nets that you pre-selected on the workspace are added to the Assigned nets column.

  6. Click OK to close the Edit Groups dialog box. If you do not wish to close the dialog box, click Apply to accept the changes.

    A message displays asking if you want to change all applicable net properties for the named net to “Use Group Settings”. These are the group settings that are found in the Net groups tab of the Spreadsheet View, or the Change Group Settings dialog box.

  7. Select Yes or No.

    The message re-appears for each net that you are adding to the group, unless you select Remember my answer to this question for next time.

      You can change this setting from the Global Options dialog box. Refer to the Message Prompts Tab section for information.

Complete the following steps to edit a net group:

  1. Select Tools»Group editor to display the Edit Groups dialog box.
  2. Select the Net groups tab.
  3. Highlight the desired group in the Groups list.
  4. Do any of the following as required:
    • Add nets to the group as described earlier in this section.
    • Remove nets from the group using:
      • Remove all button—Click to remove all Assigned Nets from the group.
      • Remove button—Select the nets you wish to remove from the group in the Assigned nets list and click Remove.
  5. Click Apply.
  6. Optionally, highlight the desired group in the Groups list and click the Properties button to display the Change Group Settings dialog box.
  7. Make the required changes in the Group settings area and click OK.

      Refer to the Change Group Settings Dialog Box and Net Group Settings sections for more information.

Complete the following steps to delete a group:

  1. Select Tools»Group editor to display the Edit Groups dialog box.
  2. Select the Net groups tab.

      No confirmation is given, and the Delete action cannot be undone.

  3. Highlight the desired group in the Groups list and click Delete.