BeginChildFrame() helper has the extra_flags parameter.

imgui.cpp

@@ -3298,13 +3298,13 @@ void ImGui::EndChild()
 }
 
 // Helper to create a child window / scrolling region that looks like a normal widget frame.
-bool ImGui::BeginChildFrame(ImGuiID id, const ImVec2& size)
+bool ImGui::BeginChildFrame(ImGuiID id, const ImVec2& size, ImGuiWindowFlags extra_flags)
 {
     ImGuiState& g = *GImGui;
     const ImGuiStyle& style = g.Style;
     ImGui::PushStyleColor(ImGuiCol_ChildWindowBg, style.Colors[ImGuiCol_FrameBg]);
     ImGui::PushStyleVar(ImGuiStyleVar_ChildWindowRounding, style.FrameRounding);
-    return ImGui::BeginChild(id, size, false, ImGuiWindowFlags_NoMove);
+    return ImGui::BeginChild(id, size, false, ImGuiWindowFlags_NoMove | extra_flags);
 }
 
 void ImGui::EndChildFrame()

imgui.h

@@ -386,7 +386,7 @@ namespace ImGui
     IMGUI_API ImVec2        CalcTextSize(const char* text, const char* text_end = NULL, bool hide_text_after_double_hash = false, float wrap_width = -1.0f);
     IMGUI_API void          CalcListClipping(int items_count, float items_height, int* out_items_display_start, int* out_items_display_end);    // calculate coarse clipping for large list of evenly sized items. Prefer using the ImGuiListClipper higher-level helper if you can.
 
-    IMGUI_API bool          BeginChildFrame(ImGuiID id, const ImVec2& size);                    // helper to create a child window / scrolling region that looks like a normal widget frame
+    IMGUI_API bool          BeginChildFrame(ImGuiID id, const ImVec2& size, ImGuiWindowFlags extra_flags = 0);	// helper to create a child window / scrolling region that looks like a normal widget frame
     IMGUI_API void          EndChildFrame();
 
     IMGUI_API ImVec4        ColorConvertU32ToFloat4(ImU32 in);