class="org.eclipse.jubula.client.ui.rcp.handlers.open.OpenTestCaseEditorHandler"

      commandId="org.eclipse.jubula.client.ui.commands.OpenSpecification">

      <activeWhen>

        <and>

            <with variable="activePartId">

                <equals value="org.eclipse.jubula.client.ui.rcp.views.TestCaseBrowser" />

            </with>

            <iterate 

                ifEmpty="false"

                operator="and">

                <or>

                    <instanceof

                          value="org.eclipse.jubula.client.core.model.ISpecTestCasePO">

                    </instanceof>

                </or>

            </iterate>

        </and>

      </activeWhen>

    </handler>

    <handler

      class="org.eclipse.jubula.client.ui.rcp.handlers.open.OpenTestSuiteEditorHandler"

      commandId="org.eclipse.jubula.client.ui.commands.OpenSpecification">

      <activeWhen>

        <and>

            <with variable="activePartId">

                <equals value="org.eclipse.jubula.client.ui.rcp.views.TestSuiteBrowser" />

            </with>

            <iterate 

                ifEmpty="false"

                operator="and">

                <or>

                    <instanceof

                          value="org.eclipse.jubula.client.core.model.ITestSuitePO">

                    </instanceof>

                </or>

            </iterate>

        </and>

      </activeWhen>

    </handler>

    <handler

      class="org.eclipse.jubula.client.ui.rcp.handlers.open.OpenTestJobEditorHandler"

      commandId="org.eclipse.jubula.client.ui.commands.OpenSpecification">

      <activeWhen>

        <and>

            <with variable="activePartId">

                <equals value="org.eclipse.jubula.client.ui.rcp.views.TestSuiteBrowser" />

            </with>

            <iterate 

                ifEmpty="false"

                operator="and">

                <or>

                    <instanceof

                          value="org.eclipse.jubula.client.core.model.ITestJobPO">

                    </instanceof>

                </or>

            </iterate>

        </and>

      </activeWhen>

    </handler>

    <handler