diff --git a/selective-vpn-gui/traffic_mode_dialog.py b/selective-vpn-gui/traffic_mode_dialog.py
index 912be74..6e79f20 100644
--- a/selective-vpn-gui/traffic_mode_dialog.py
+++ b/selective-vpn-gui/traffic_mode_dialog.py
@@ -267,6 +267,14 @@ RU: Восстанавливает маршруты/nft из последнег
         self.btn_app_profile_load.clicked.connect(self.on_app_profile_load)
         row_prof_btn.addWidget(self.btn_app_profile_load)
 
+        self.btn_app_profile_run = QPushButton("Run profile")
+        self.btn_app_profile_run.setToolTip(
+            "EN: Launch selected profile via systemd-run --user and apply routing mark.\n"
+            "RU: Запустить выбранный профиль через systemd-run --user и применить метку маршрутизации."
+        )
+        self.btn_app_profile_run.clicked.connect(self.on_app_profile_run)
+        row_prof_btn.addWidget(self.btn_app_profile_run)
+
         self.btn_app_profile_delete = QPushButton("Delete profile")
         self.btn_app_profile_delete.setToolTip(
             "EN: Delete selected saved profile.\n"
@@ -1025,6 +1033,105 @@ RU: Применяет policy-rules и проверяет health. При оши
         # Fallback: first token
         return (cmd.split() or [""])[0].strip()
 
+    def _launch_and_mark(
+        self,
+        *,
+        cmdline: str,
+        target: str,
+        ttl_sec: int,
+        app_key: str = "",
+    ) -> None:
+        cmdline = (cmdline or "").strip()
+        if not cmdline:
+            raise ValueError("empty command")
+        tgt = (target or "").strip().lower()
+        if tgt not in ("vpn", "direct"):
+            raise ValueError("invalid target")
+        ttl = int(ttl_sec or 0)
+        if ttl <= 0:
+            ttl = int(self.spn_app_ttl.value()) * 3600
+        key = (app_key or "").strip() or self._infer_app_key_from_cmdline(cmdline)
+
+        # EN: If we already have a running unit for the same app_key+target, refresh mark instead of spawning.
+        # RU: Если уже есть запущенный unit для того же app_key+target — обновляем метку, не плодим инстансы.
+        try:
+            items = list(self.ctrl.traffic_appmarks_items() or [])
+        except Exception:
+            items = []
+        for it in items:
+            if (getattr(it, "target", "") or "").strip().lower() != tgt:
+                continue
+            if (getattr(it, "app_key", "") or "").strip() != key:
+                continue
+            unit = (getattr(it, "unit", "") or "").strip()
+            if not unit:
+                continue
+            code, out = self._systemctl_user(["is-active", unit])
+            if code == 0 and (out or "").strip().lower() == "active":
+                cg = self._effective_cgroup_for_unit_retry(unit, timeout_sec=3.0)
+                self._append_app_log(
+                    f"[profile] already running: app={key} target={tgt} unit={unit} (refreshing mark)"
+                )
+                res = self.ctrl.traffic_appmarks_apply(
+                    op="add",
+                    target=tgt,
+                    cgroup=cg,
+                    unit=unit,
+                    command=cmdline,
+                    app_key=key,
+                    timeout_sec=ttl,
+                )
+                if not res.ok:
+                    raise RuntimeError(res.message or "appmark refresh failed")
+                self._set_action_status(
+                    f"App mark refreshed: target={tgt} cgroup_id={res.cgroup_id}",
+                    ok=True,
+                )
+                self._set_last_scope(
+                    unit=unit,
+                    target=tgt,
+                    app_key=key,
+                    cmdline=cmdline,
+                    cgroup_id=int(res.cgroup_id or 0),
+                )
+                self.refresh_appmarks_items(quiet=True)
+                self.refresh_appmarks_counts()
+                self.refresh_running_scopes(quiet=True)
+                return
+
+        unit = f"svpn-{tgt}-{int(time.time())}.service"
+        self._append_app_log(f"[profile] launching: app={key or '-'} target={tgt} ttl={ttl}s unit={unit}")
+        cg, out = self._run_systemd_unit(cmdline, unit=unit)
+        if out:
+            self._append_app_log(f"[profile] systemd-run:\n{out}")
+        self._append_app_log(f"[profile] ControlGroup: {cg}")
+        self._set_last_scope(unit=unit, target=tgt, app_key=key, cmdline=cmdline, cgroup_id=0)
+
+        res = self.ctrl.traffic_appmarks_apply(
+            op="add",
+            target=tgt,
+            cgroup=cg,
+            unit=unit,
+            command=cmdline,
+            app_key=key,
+            timeout_sec=ttl,
+        )
+        if not res.ok:
+            raise RuntimeError(res.message or "appmark apply failed")
+
+        self._append_app_log(f"[appmarks] OK: {res.message} cgroup_id={res.cgroup_id} timeout={res.timeout_sec}s")
+        self._set_action_status(f"App mark added: target={tgt} cgroup_id={res.cgroup_id}", ok=True)
+        self._set_last_scope(
+            unit=unit,
+            target=tgt,
+            app_key=key,
+            cmdline=cmdline,
+            cgroup_id=int(res.cgroup_id or 0),
+        )
+        self.refresh_appmarks_items(quiet=True)
+        self.refresh_appmarks_counts()
+        self.refresh_running_scopes(quiet=True)
+
     def _selected_app_profile(self):
         it = self.lst_app_profiles.currentItem()
         if not it:
@@ -1142,6 +1249,25 @@ RU: Применяет policy-rules и проверяет health. При оши
 
         self._safe(work, title="Load profile error")
 
+    def on_app_profile_run(self) -> None:
+        prof = self._selected_app_profile()
+        if prof is None:
+            return
+
+        def work() -> None:
+            cmd = (getattr(prof, "command", "") or "").strip()
+            target = (getattr(prof, "target", "") or "").strip().lower()
+            ttl = int(getattr(prof, "ttl_sec", 0) or 0)
+            app_key = (getattr(prof, "app_key", "") or "").strip()
+            if not cmd:
+                raise RuntimeError("profile has empty command")
+            if target not in ("vpn", "direct"):
+                target = "vpn"
+
+            self._launch_and_mark(cmdline=cmd, target=target, ttl_sec=ttl, app_key=app_key)
+
+        self._safe(work, title="Run profile error")
+
     def on_app_profile_delete(self) -> None:
         prof = self._selected_app_profile()
         if prof is None: