Index: binaries/data/mods/public/gui/pregame/MainMenuPage.js
===================================================================
--- binaries/data/mods/public/gui/pregame/MainMenuPage.js
+++ binaries/data/mods/public/gui/pregame/MainMenuPage.js
@@ -9,6 +9,46 @@
 		this.menuHandler = new MainMenuItemHandler(mainMenuItems);
 		this.splashScreenHandler = new SplashScreenHandler(data, hotloadData && hotloadData.splashScreenHandler);
 
+		let toto = Engine.GetGUIObjectByName("mainMenuPage");
+		let doText = (caption, size) => ({
+			"@type": "text",
+			"@size": size,
+			"@style": "ModernLabelText",
+			"@caption": caption,
+		});
+		let added = toto.createChild({
+			"@type": "image",
+			"@size": "200 200 500 500",
+			"@style": "ModernDialog",
+			"@z": 200,
+			"object": [
+				doText("turlututu", "0 0 200 200"),
+				{
+					"@type": "text",
+					"@size": "0 200 200 400",
+					"@style": "ModernLabelText",
+					"@caption": "ChapoPointu",
+					"object": {
+						"@type": "image",
+						"@size": "600 300 100% 600+40",
+						"@style": "ModernDialog",
+						"@z": 250,
+					}
+				}]
+		});
+		added.deleteChild(added.children[0]);
+
+		toto.createChild({
+			"script": {
+				"@file": "not_a_file.js",
+			},
+		});
+
+
+		toto.createChild({
+			"script": "warn('Hey you')",
+		});
+
 		new MusicHandler();
 		new ProjectInformationHandler(projectInformation);
 		new CommunityButtonHandler(communityButtons);
Index: source/gui/CGUI.h
===================================================================
--- source/gui/CGUI.h
+++ source/gui/CGUI.h
@@ -250,6 +250,18 @@
 
 	shared_ptr<ScriptInterface> GetScriptInterface() { return m_ScriptInterface; };
 
+	/**
+	 * The CGUI creates the object and adds it as a child to parent.
+	 * To the created object, this is the same as being created on page open (same events, etc.)
+	 */
+	IGUIObject* CreateChild(const XMBData& file, const XMBElement& element, IGUIObject* parent);
+
+	/**
+	 * Detach the object from its parent and delete it.
+	 * The object must have a parent - use PopPage to delete the root page object.
+	 */
+	void DetachAndDeleteChild(IGUIObject* child);
+
 private:
 	/**
 	 * The CGUI takes ownership of the child object and links the parent with the child.
Index: source/gui/CGUI.cpp
===================================================================
--- source/gui/CGUI.cpp
+++ source/gui/CGUI.cpp
@@ -371,6 +371,37 @@
 	return (*it->second)(*this);
 }
 
+
+IGUIObject* CGUI::CreateChild(const XMBData& file, const XMBElement& element, IGUIObject* parent)
+{
+	std::unordered_set<VfsPath> paths;
+	std::vector<std::pair<CStr, CStr>> nameSubst;
+	IGUIObject* child = Xeromyces_ReadObject(file, element, parent, nameSubst, paths, 0);
+	if (!child)
+		return nullptr;
+
+	child->RecurseObject(nullptr, &IGUIObject::UpdateCachedSize);
+	SGUIMessage msg(GUIM_LOAD);
+	child->RecurseObject(nullptr, &IGUIObject::HandleMessage, msg);
+	child->ScriptEvent(EventNameLoad);
+
+	return child;
+}
+
+void CGUI::DetachAndDeleteChild(IGUIObject* child)
+{
+	if (!child)
+		return;
+	if (!child->m_pParent)
+	{
+		LOGERROR("Cannot delete the root object of a page");
+		return;
+	}
+	child->m_pParent->UnregisterChild(child);
+	m_pAllObjects.erase(child->m_Name);
+	delete child;
+}
+
 bool CGUI::AddObject(IGUIObject& parent, IGUIObject& child)
 {
 	if (child.m_Name.empty())
Index: source/gui/ObjectBases/IGUIObject.h
===================================================================
--- source/gui/ObjectBases/IGUIObject.h
+++ source/gui/ObjectBases/IGUIObject.h
@@ -101,6 +101,18 @@
 	//  Will change all internally set names to something like "<unnamed object>"
 	CStr GetPresentableName() const;
 
+	/**
+	 * Create a child object from the given definition.
+	 * @return nullptr on failure.
+	 */
+	IGUIObject* CreateChild(JS::HandleValue);
+
+	/**
+	 * Remove a child & delete it.
+	 * @return whether the child was deleted.
+	 */
+	bool DeleteChild(IGUIObject* child);
+
 	/**
 	 * Return all child objects of the current object.
 	 */
Index: source/gui/ObjectBases/IGUIObject.cpp
===================================================================
--- source/gui/ObjectBases/IGUIObject.cpp
+++ source/gui/ObjectBases/IGUIObject.cpp
@@ -26,6 +26,7 @@
 #include "ps/CLogger.h"
 #include "ps/GameSetup/Config.h"
 #include "ps/Profile.h"
+#include "ps/XMB/XMBStorage.h"
 #include "scriptinterface/ScriptContext.h"
 #include "scriptinterface/ScriptExtraHeaders.h"
 #include "scriptinterface/ScriptInterface.h"
@@ -86,6 +87,27 @@
 	// m_Children is deleted along all other GUI Objects in the CGUI destructor
 }
 
+IGUIObject* IGUIObject::CreateChild(JS::HandleValue value)
+{
+	XMBData spec;
+	XMBStorage storage;
+	storage.LoadJSValue(*m_pGUI.GetScriptInterface().get(), value, "object");
+	spec.Initialise(storage);
+	return m_pGUI.CreateChild(spec, spec.GetRoot(), this);
+}
+
+bool IGUIObject::DeleteChild(IGUIObject* child)
+{
+	// Don't delete someone else's child.
+	std::vector<IGUIObject*>::iterator it = std::find(m_Children.begin(), m_Children.end(), child);
+	if (it == m_Children.end())
+		return false;
+
+	// Calls RemoveChild();
+	m_pGUI.DetachAndDeleteChild(child);
+	return true;
+}
+
 void IGUIObject::RegisterChild(IGUIObject* child)
 {
 	child->SetParent(this);
Index: source/gui/Scripting/JSInterface_GUIProxy.cpp
===================================================================
--- source/gui/Scripting/JSInterface_GUIProxy.cpp
+++ source/gui/Scripting/JSInterface_GUIProxy.cpp
@@ -33,7 +33,10 @@
 	CreateFunction<&IGUIObject::SetFocus>(rq, cache, "focus");
 	CreateFunction<&IGUIObject::ReleaseFocus>(rq, cache, "blur");
 	CreateFunction<&IGUIObject::GetComputedSize>(rq, cache, "getComputedSize");
+	CreateFunction<&IGUIObject::CreateChild>(rq, cache, "createChild");
+	CreateFunction<&IGUIObject::DeleteChild>(rq, cache, "deleteChild");
 }
+
 DECLARE_GUIPROXY(IGUIObject);
 
 // Implement derived types below.