diff -r 5e36330f954b -r a07662e829c0 src/main/webapp/WEB-INF/jsp/project-form.jsp
--- a/src/main/webapp/WEB-INF/jsp/project-form.jsp	Tue Jun 23 13:06:07 2026 +0200
+++ b/src/main/webapp/WEB-INF/jsp/project-form.jsp	Tue Jun 23 14:30:10 2026 +0200
@@ -84,6 +84,12 @@
                 <input name="ordinal" type="number" value="${project.ordinal}"/>
             </td>
         </tr>
+        <tr title="<fmt:message key="project.hidden.tooltip" />">
+            <th><fmt:message key="project.hidden"/></th>
+            <td>
+                <input name="hidden" type="checkbox" <c:if test="${project.hidden}">checked</c:if>/>
+            </td>
+        </tr>
         </tbody>
         <tfoot>
         <tr>