diff --git a/public/locales/de-DE/translation.json b/public/locales/de-DE/translation.json
index 5f7d6a9..3ecd280 100644
--- a/public/locales/de-DE/translation.json
+++ b/public/locales/de-DE/translation.json
@@ -345,7 +345,11 @@
     "jobs": {
       "overriding-job-priority": "Überschriebene Job-Priorität",
       "suspend": "Anhalten",
-      "change-priority": "Job-Priorität ändern"
+      "change-priority": "Job-Priorität ändern",
+      "priority": "Priorität",
+      "include-jobs": "Auf bestehende Jobs anwenden",
+      "reset-priority": "Priorität zurücksetzen",
+      "priority-success": "Job-Definition-Priorität aktualisiert."
     },
     "sort": {
       "name": "Name",
diff --git a/public/locales/en-US/translation.json b/public/locales/en-US/translation.json
index ac20fbe..314e093 100644
--- a/public/locales/en-US/translation.json
+++ b/public/locales/en-US/translation.json
@@ -345,7 +345,11 @@
     "jobs": {
       "overriding-job-priority": "Overriding Job Priority",
       "suspend": "Suspend",
-      "change-priority": "Change Overriding Job Priority"
+      "change-priority": "Change Overriding Job Priority",
+      "priority": "Priority",
+      "include-jobs": "Apply to existing jobs",
+      "reset-priority": "Reset Priority",
+      "priority-success": "Job definition priority updated."
     },
     "sort": {
       "name": "Name",
diff --git a/src/api/resources/job_definition.js b/src/api/resources/job_definition.js
index 52c2e87..0520c51 100644
--- a/src/api/resources/job_definition.js
+++ b/src/api/resources/job_definition.js
@@ -1,12 +1,25 @@
-import { GET } from '../helper.jsx'
+import { GET, PUT } from "../helper.jsx";
 
 const get_job_definitions = (state, definition_id) =>
-  GET(`/job-definition?processDefinitionId=${definition_id}`, state, state.api.job_definition.all.by_process_definition)
+  GET(
+    `/job-definition?processDefinitionId=${definition_id}`,
+    state,
+    state.api.job_definition.all.by_process_definition,
+  );
+
+const set_priority = (state, id, priority, include_jobs = false) =>
+  PUT(
+    `/job-definition/${id}/jobPriority`,
+    { priority, includeJobs: priority !== null && include_jobs },
+    state,
+    state.api.job_definition.priority,
+  );
 
 const job_definition = {
   all: {
-    by_process_definition: get_job_definitions
-  }
-}
+    by_process_definition: get_job_definitions,
+  },
+  set_priority,
+};
 
-export default job_definition
\ No newline at end of file
+export default job_definition;
diff --git a/src/api/resources/job_definition.test.js b/src/api/resources/job_definition.test.js
index dde29f3..b1d66b5 100644
--- a/src/api/resources/job_definition.test.js
+++ b/src/api/resources/job_definition.test.js
@@ -2,9 +2,10 @@ import { describe, it, vi, beforeEach } from "vitest";
 
 vi.mock("../helper.jsx", () => ({
   GET: vi.fn(),
+  PUT: vi.fn(),
 }));
 
-import { GET } from "../helper.jsx";
+import { GET, PUT } from "../helper.jsx";
 import { create_mock_state, expect_api_call } from "../../test/helpers.js";
 import job_definition from "./job_definition.js";
 
@@ -22,4 +23,24 @@ describe("api/resources/job_definition", () => {
       signal: state.api.job_definition.all.by_process_definition,
     });
   });
+
+  it("set_priority() PUTs overriding priority to the job definition", () => {
+    job_definition.set_priority(state, "job-def-1", 42, true);
+    expect_api_call(PUT, {
+      url: "/job-definition/job-def-1/jobPriority",
+      body: { priority: 42, includeJobs: true },
+      state,
+      signal: state.api.job_definition.priority,
+    });
+  });
+
+  it("set_priority() resets priority without propagating to existing jobs", () => {
+    job_definition.set_priority(state, "job-def-1", null, true);
+    expect_api_call(PUT, {
+      url: "/job-definition/job-def-1/jobPriority",
+      body: { priority: null, includeJobs: false },
+      state,
+      signal: state.api.job_definition.priority,
+    });
+  });
 });
diff --git a/src/pages/Processes.jsx b/src/pages/Processes.jsx
index d6ac79e..538b9a0 100644
--- a/src/pages/Processes.jsx
+++ b/src/pages/Processes.jsx
@@ -686,7 +686,7 @@ const DefinitionsEmpty = () => {
       <a
         href="https://docs.operaton.org/manual/latest/installation/full/tomcat/manual/"
         target="_blank"
-        rel="noopener"
+        rel="noreferrer"
       >
         {t("processes.empty.how-to")}
       </a>
@@ -928,8 +928,7 @@ const InstanceDetails = () => {
       params: { selection_id, definition_id, panel },
       query,
     } = useRoute(),
-    history_mode = query.history === "true",
-    [t] = useTranslation();
+    history_mode = query.history === "true";
 
   if (selection_id) {
     if (
@@ -1044,9 +1043,8 @@ const InstanceVariables = () => {
               ? Object.entries(
                   state.api.process.instance.variables.value.data,
                 ).map(
-                  // eslint-disable-next-line react/jsx-key
                   ([name, { type, value }]) => (
-                    <tr>
+                    <tr key={name}>
                       <td>{name}</td>
                       <td>{type}</td>
                       <td>{value}</td>
@@ -1054,9 +1052,8 @@ const InstanceVariables = () => {
                   ),
                 )
               : state.api.process.instance.variables.value.data.map(
-                  // eslint-disable-next-line react/jsx-key
                   ({ name, type, value }) => (
-                    <tr>
+                    <tr key={name}>
                       <td>{name}</td>
                       <td>{type}</td>
                       <td>{value}</td>
@@ -1426,6 +1423,14 @@ const JobDefinitions = () => {
       {history_mode && (
         <small class="history-na">{t("processes.history-mode-na")}</small>
       )}
+      {state.api.job_definition.priority.value ? (
+        <RequestState
+          signal={state.api.job_definition.priority}
+          on_success={() => (
+            <p class="success">{t("processes.jobs.priority-success")}</p>
+          )}
+        />
+      ) : null}
       <table>
         <thead>
           <tr>
@@ -1440,22 +1445,7 @@ const JobDefinitions = () => {
         <tbody>
           {state.api.job_definition.all.by_process_definition.value?.data?.map(
             (definition) => (
-              <tr key={definition.id}>
-                <td>
-                  {definition.suspended
-                    ? t("common.suspended")
-                    : t("common.active")}
-                </td>
-                <td>?</td>
-                {/*<td>{definition.calledFromActivityIds.map(a => `${a}, `)}</td>*/}
-                <td>{definition.jobType}</td>
-                <td>{definition.jobConfiguration}</td>
-                <td>{definition.overridingJobPriority ?? "-"}</td>
-                <td>
-                  <button>{t("processes.jobs.suspend")}</button>
-                  <button>{t("processes.jobs.change-priority")}</button>
-                </td>
-              </tr>
+              <JobDefinitionRow key={definition.id} definition={definition} />
             ),
           )}
         </tbody>
@@ -1464,12 +1454,80 @@ const JobDefinitions = () => {
   );
 };
 
-const BackToListBtn = ({ url, title, className }) => (
-  <a className={`tabs-back ${className || ""}`} href={url} title={title}>
-    <Icons.arrow_left />
-    <Icons.list />
-  </a>
-);
+const JobDefinitionRow = ({ definition }) => {
+  const state = useContext(AppState),
+    { definition_id } = useRoute(),
+    [t] = useTranslation(),
+    priority = useSignal(definition.overridingJobPriority ?? ""),
+    include_jobs = useSignal(false),
+    input_id = `job-priority-${definition.id}`;
+
+  const refresh = () =>
+      engine_rest.job_definition.all.by_process_definition(
+        state,
+        definition_id,
+      ),
+    on_submit = (e) => {
+      e.preventDefault();
+      const raw = String(priority.value).trim();
+      if (raw === "") return;
+      const parsed = Number(raw);
+      if (!Number.isFinite(parsed)) return;
+      void engine_rest.job_definition.set_priority(
+        state,
+        definition.id,
+        parsed,
+        include_jobs.value,
+      ).then(refresh);
+    },
+    on_reset = () =>
+      engine_rest.job_definition.set_priority(
+        state,
+        definition.id,
+        null,
+        false,
+      ).then(refresh);
+
+  return (
+    <tr>
+      <td>
+        {definition.suspended
+          ? t("common.suspended")
+          : t("common.active")}
+      </td>
+      <td>{definition.activityId ?? "—"}</td>
+      <td>{definition.jobType}</td>
+      <td>{definition.jobConfiguration}</td>
+      <td>{definition.overridingJobPriority ?? "-"}</td>
+      <td>
+        <form onSubmit={on_submit}>
+          <label for={input_id}>{t("processes.jobs.priority")}</label>
+          <input
+            id={input_id}
+            type="number"
+            value={priority.value}
+            onInput={(e) => (priority.value = e.currentTarget.value)}
+            required
+          />
+          <label>
+            <input
+              type="checkbox"
+              checked={include_jobs.value}
+              onChange={(e) => (include_jobs.value = e.currentTarget.checked)}
+            />
+            {t("processes.jobs.include-jobs")}
+          </label>
+          <div class="button-group">
+            <button type="submit">{t("processes.jobs.change-priority")}</button>
+            <button type="button" class="secondary" onClick={on_reset}>
+              {t("processes.jobs.reset-priority")}
+            </button>
+          </div>
+        </form>
+      </td>
+    </tr>
+  );
+};
 
 const DefinitionsManage = () => {
   const state = useContext(AppState),
diff --git a/src/pages/Processes.test.jsx b/src/pages/Processes.test.jsx
index 60c4b48..7c475c5 100644
--- a/src/pages/Processes.test.jsx
+++ b/src/pages/Processes.test.jsx
@@ -356,6 +356,70 @@ describe("ProcessesPage — definition tabs", () => {
     expect(getByText("timer")).toBeTruthy();
     expect(getByText("R/PT5M")).toBeTruthy();
   });
+
+  it("sets an overriding job definition priority", async () => {
+    mockParams = { definition_id: "proc:1", panel: "jobs" };
+    engine_rest.job_definition.set_priority.mockResolvedValue(undefined);
+    signal_response(state.api.job_definition.all.by_process_definition, [
+      {
+        id: "jd1",
+        suspended: false,
+        activityId: "timer_start",
+        jobType: "timer",
+        jobConfiguration: "R/PT5M",
+        overridingJobPriority: null,
+      },
+    ]);
+    const { container, getByLabelText, getByText } = renderPage(state);
+
+    fireEvent.input(getByLabelText("processes.jobs.priority"), {
+      target: { value: "42" },
+    });
+    fireEvent.click(getByLabelText("processes.jobs.include-jobs"));
+    fireEvent.submit(container.querySelector("form"));
+    await Promise.resolve();
+    await Promise.resolve();
+
+    expect(engine_rest.job_definition.set_priority).toHaveBeenCalled();
+    expect(engine_rest.job_definition.set_priority.mock.lastCall[0]).toBe(
+      state,
+    );
+    expect(engine_rest.job_definition.set_priority.mock.lastCall[1]).toBe(
+      "jd1",
+    );
+    expect(engine_rest.job_definition.set_priority.mock.lastCall[2]).toBe(42);
+    expect(engine_rest.job_definition.set_priority.mock.lastCall[3]).toBe(true);
+    expect(getByText("timer_start")).toBeTruthy();
+  });
+
+  it("resets an overriding job definition priority", async () => {
+    mockParams = { definition_id: "proc:1", panel: "jobs" };
+    engine_rest.job_definition.set_priority.mockResolvedValue(undefined);
+    signal_response(state.api.job_definition.all.by_process_definition, [
+      {
+        id: "jd1",
+        suspended: false,
+        activityId: "timer_start",
+        jobType: "timer",
+        jobConfiguration: "R/PT5M",
+        overridingJobPriority: 10,
+      },
+    ]);
+    const { getByText } = renderPage(state);
+
+    fireEvent.click(getByText("processes.jobs.reset-priority"));
+    await Promise.resolve();
+    await Promise.resolve();
+
+    expect(engine_rest.job_definition.set_priority).toHaveBeenCalled();
+    expect(engine_rest.job_definition.set_priority.mock.lastCall[1]).toBe(
+      "jd1",
+    );
+    expect(engine_rest.job_definition.set_priority.mock.lastCall[2]).toBe(null);
+    expect(engine_rest.job_definition.set_priority.mock.lastCall[3]).toBe(
+      false,
+    );
+  });
 });
 
 describe("ProcessesPage — instance details", () => {
diff --git a/src/state.js b/src/state.js
index f63ad2e..e3d1e3c 100644
--- a/src/state.js
+++ b/src/state.js
@@ -183,6 +183,7 @@ const createAppState = () => {
       all: {
         by_process_definition: signal(null),
       },
+      priority: signal(null),
     },
   };