diff --git a/class/ReqHandler.php b/class/ReqHandler.php
index 65136ed..a588555 100644
--- a/class/ReqHandler.php
+++ b/class/ReqHandler.php
@@ -30,6 +30,10 @@ class ReqHandlerAssignment
         $this->hint = $hint;
         $this->rh = &$rh; // assign be reference
     }
+
+    function dump() : string {
+        return "<i><font color='#2f4f4f'>" . $this->action . "</font></i>(<code>" . join(", ", $this->params) . "</code>) <font color='#008b8b'>" . $this->hint . "</font> [" . $this->level . "]";
+    }
 }
 
 // Request Handler class
@@ -136,4 +140,15 @@ class ReqHandler
     function set_privilege_level(string $level) {
         $this->level = $level;
     }
+
+    // Dump commands
+    function dump_actions() : string {
+        $dump = "";
+        foreach ($this->mapping as $level => $actions) {
+            foreach ($actions as $action) {
+                $dump .= $action->dump() . "<br>";
+            }
+        }
+        return $dump;
+    }
 }
\ No newline at end of file
diff --git a/interface.php b/interface.php
index b75fb4d..70b3ba9 100644
--- a/interface.php
+++ b/interface.php
@@ -592,8 +592,14 @@ $rh->add("search_groups", ["needle"], PRIVILEGE_QUIZMASTER, "search_player_group
 
 $rh->add(["create_user", "update_user"], ["nickname", "password", "groups", "realname", "privilege"], PRIVILEGE_QUIZMASTER, "create_update_user", RESP_PLAIN, "Create or update user.");
 $rh->add("delete_users", ["users"], PRIVILEGE_QUIZMASTER, "delete_users", RESP_PLAIN, "Delete users.");
-$rh->add("get_all_game_users", [], PRIVILEGE_QUIZMASTER, "get_all_users", RESP_JSON, "Get all users.");
-$rh->add("import_users_from_csv", [], PRIVILEGE_QUIZMASTER, "import_", RESP_JSON, "Get all users.");
+$rh->add("get_all_users", [], PRIVILEGE_QUIZMASTER, "get_all_game_users", RESP_JSON, "Get all users.");
+$rh->add("import_users_from_csv", [], PRIVILEGE_QUIZMASTER, "import_users_from_csv", RESP_JSON, "Get all users.");
+
+function dump_actions(ReqHandler &$rh, array $params): string {
+    return $rh->dump_actions();
+}
+
+$rh->add("dump_actions", [], PRIVILEGE_QUIZMASTER, "dump_actions", RESP_PLAIN, "Dump registered all actions.");
 
 // ----------