ui: the tour names the dock button; the user guide's key table follows shortcuts.cpp

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/ui_app.hpp

@@ -786,8 +786,8 @@ struct App {
   std::string config_comment;
   /// The cache of captured events, and whether latches are being written to it. The store is created
   /// once the source is known (it is keyed on `<host>-<port>`, like the packet capture);
-  /// `event_recording` is the trigger panel's switch and defaults on -- the cache is only useful if
-  /// it was already on when the event you wanted happened.
+  /// `event_recording` is the trigger panel's switch and starts off; the cache is only useful if
+  /// it was already on when the event you wanted happened, so switch it on before the events you want.
   std::unique_ptr<EventStore> event_store;
   /// Whether the cache holds anything, refreshed once a second: what keeps the dock's Events block and the
   /// `events` page live for a source whose events are already written, even with recording switched off.

src/ui_probe.cpp

@@ -185,8 +185,8 @@ gboolean exit_probe_step3b(gpointer user) {
   a->dbg_dock_sensitive = gtk_widget_get_sensitive(a->side_box) ? 1 : 0;
   a->dbg_dock_w = a->dbg_side_w;
   {
-    // The dock holds only the readouts box; the full cursors and measurements panels are slide-over pages,
-    // registered whether or not either is open.
+    // The dock holds only the readouts box, a separator and the events block; the full cursors and
+    // measurements panels are slide-over pages, registered whether or not either is open.
     int children = 0;
     for (GtkWidget* c = gtk_widget_get_first_child(a->dock_page); c != nullptr;
          c = gtk_widget_get_next_sibling(c)) {

src/ui_tour.cpp

@@ -459,7 +459,7 @@ constexpr TourStep kTourSteps[] = {
      "fixed width, with the recorded events below them: one row per latched event, newest first, and "
      "one click on a row replays it. Edit, beside each heading, opens that instrument's full panel "
      "over the plot, Manage opens the full list of events; a click on a measurement opens its "
-     "dialog. The side-panel button in the bar above shows and hides the dock.",
+     "dialog. The dock button in the bar above shows and hides the dock.",
      &App::side_box},
     {"signals", "signals", "Adding a signal",
      "What can be added: the signals the source declares that are not acquired yet, each with the "