From cc2b7baab661e41aa8276c60a233096368f12ae9 Mon Sep 17 00:00:00 2001
From: Mitch Bradley <wmb@firmworks.com>
Date: Fri, 16 Jul 2021 18:33:43 -1000
Subject: [PATCH] $axes/x will display the subtree.

---
 Grbl_Esp32/src/Configuration/Generator.cpp      |  2 +-
 Grbl_Esp32/src/Configuration/Generator.h        |  2 +-
 Grbl_Esp32/src/Configuration/RuntimeSetting.cpp | 10 ++++++++++
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/Grbl_Esp32/src/Configuration/Generator.cpp b/Grbl_Esp32/src/Configuration/Generator.cpp
index 5385f157..02e9bec0 100644
--- a/Grbl_Esp32/src/Configuration/Generator.cpp
+++ b/Grbl_Esp32/src/Configuration/Generator.cpp
@@ -25,7 +25,7 @@
 #include <atomic>
 
 namespace Configuration {
-    Generator::Generator(SimpleOutputStream& dst) : indent_(0), dst_(dst) {
+    Generator::Generator(SimpleOutputStream& dst, int indent) : indent_(indent), dst_(dst) {
         std::atomic_thread_fence(std::memory_order::memory_order_seq_cst);
     }
 
diff --git a/Grbl_Esp32/src/Configuration/Generator.h b/Grbl_Esp32/src/Configuration/Generator.h
index ed94a941..d977ef90 100644
--- a/Grbl_Esp32/src/Configuration/Generator.h
+++ b/Grbl_Esp32/src/Configuration/Generator.h
@@ -53,7 +53,7 @@ namespace Configuration {
         HandlerType handlerType() override { return HandlerType::Generator; }
 
     public:
-        Generator(SimpleOutputStream& dst);
+        Generator(SimpleOutputStream& dst, int indent = 0);
 
         void item(const char* name, int& value, int32_t minValue, int32_t maxValue) override {
             indent();
diff --git a/Grbl_Esp32/src/Configuration/RuntimeSetting.cpp b/Grbl_Esp32/src/Configuration/RuntimeSetting.cpp
index f0fa3f6b..ab3bfdc9 100644
--- a/Grbl_Esp32/src/Configuration/RuntimeSetting.cpp
+++ b/Grbl_Esp32/src/Configuration/RuntimeSetting.cpp
@@ -45,6 +45,16 @@ namespace Configuration {
 
                 // Handle child:
                 value->group(*this);
+            } else {
+                if (newValue_ == nullptr) {
+                    ClientStream ss(CLIENT_ALL);
+                    ss << setting_ << ":\n";
+                    Configuration::Generator generator(ss, 1);
+                    value->group(generator);
+                    isHandled_ = true;
+                } else {
+                    log_error("Can't set a value on a section");
+                }
             }
 
             // Restore situation: