diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index bd8f28ffb..15382d8b8 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -136,7 +136,7 @@ add_executable(slic3r slic3r.cpp)
 set(Boost_USE_STATIC_LIBS OFF)
 set(Boost_USE_STATIC_RUNTIME OFF)
 
-find_library(bsystem_l boost_system)
+find_library(bsystem_l boost_system log)
 add_library(bsystem SHARED IMPORTED)
 set_target_properties(bsystem PROPERTIES IMPORTED_LOCATION ${bsystem_l})
 find_library(bthread_l boost_thread)
@@ -164,6 +164,7 @@ IF(wxWidgets_FOUND)
     add_library(slic3r_gui STATIC 
     ${GUI_LIBDIR}/MainFrame.cpp
     ${GUI_LIBDIR}/GUI.cpp
+    ${GUI_LIBDIR}/Settings.cpp
     ${GUI_LIBDIR}/misc_ui.cpp
     )
     #only build GUI lib if building with wx
diff --git a/src/GUI/GUI.cpp b/src/GUI/GUI.cpp
index b2a1e280b..67d5485c1 100644
--- a/src/GUI/GUI.cpp
+++ b/src/GUI/GUI.cpp
@@ -2,9 +2,13 @@
 #ifndef WX_PRECOMP
     #include <wx/wx.h>
 #endif
+#include <wx/display.h>
+
 
 #include "MainFrame.hpp"
 #include "GUI.hpp"
+#include "misc_ui.hpp"
+#include "Preset.hpp"
 
 namespace Slic3r { namespace GUI {
 
@@ -14,13 +18,142 @@ enum
 };
 bool App::OnInit()
 {
-    MainFrame *frame = new MainFrame( "Slic3r", wxDefaultPosition, wxDefaultSize, this->gui_config);
   
-    frame->Show( true );
 
     this->SetAppName("Slic3r");
+    // TODO: Call a logging function with channel GUI, severity info
+
+    this->notifier = std::unique_ptr<Notifier>();
+
+    wxString datadir {decode_path(wxStandardPaths::Get().GetUserDataDir())};
+    wxString enc_datadir = encode_path(datadir);
+    std::cerr << datadir << "\n";
+
+    // TODO: Call a logging function with channel GUI, severity info for datadir path
+
+    /* Check to make sure if datadir exists
+     *
+     */
+
+    // Load settings
+    this->gui_config->save_settings();
+    this->load_presets();
+
+
+    wxImage::AddHandler(new wxPNGHandler());
+    MainFrame *frame = new MainFrame( "Slic3r", wxDefaultPosition, wxDefaultSize, this->gui_config);
+    this->SetTopWindow(frame);
+    frame->Show( true );
+
+    // Load init bundle
+    //
+
+    // Run the wizard if we don't have an initial config
+    /*
+    $self->check_version
+        if $self->have_version_check
+            && ($Settings->{_}{version_check} // 1)
+            && (!$Settings->{_}{last_version_check} || (time - $Settings->{_}{last_version_check}) >= 86400);
+    */
+
+    // run callback functions during idle
+    /*
+    EVT_IDLE($frame, sub {
+        while (my $cb = shift @cb) {
+            $cb->();
+        }
+    });
+    */
+
+    // Handle custom version check event
+    /*
+    EVT_COMMAND($self, -1, $VERSION_CHECK_EVENT, sub {
+        my ($self, $event) = @_;
+        my ($success, $response, $manual_check) = @{$event->GetData};
+        
+        if ($success) {
+            if ($response =~ /^obsolete ?= ?([a-z0-9.-]+,)*\Q$Slic3r::VERSION\E(?:,|$)/) {
+                my $res = Wx::MessageDialog->new(undef, "A new version is available. Do you want to open the Slic3r website now?",
+                    'Update', wxYES_NO | wxCANCEL | wxYES_DEFAULT | wxICON_INFORMATION | wxICON_ERROR)->ShowModal;
+                Wx::LaunchDefaultBrowser('http://slic3r.org/') if $res == wxID_YES;
+            } else {
+                Slic3r::GUI::show_info(undef, "You're using the latest version. No updates are available.") if $manual_check;
+            }
+            $Settings->{_}{last_version_check} = time();
+            $self->save_settings;
+        } else {
+            Slic3r::GUI::show_error(undef, "Failed to check for updates. Try later.") if $manual_check;
+        }
+    });
+    */
 
     return true;
 }
 
+void App::save_window_pos(const wxTopLevelWindow* window, const wxString& name ) {
+    this->gui_config->window_pos[name] = 
+        std::make_tuple<wxPoint, wxSize, bool>(
+            window->GetScreenPosition(),
+            window->GetSize(),
+            window->IsMaximized());
+
+    this->gui_config->save_settings();
+}
+
+void App::restore_window_pos(wxTopLevelWindow* window, const wxString& name ) {
+    try {
+        auto tmp = gui_config->window_pos[name];
+        const auto& size = std::get<1>(tmp);
+        const auto& pos = std::get<0>(tmp);
+        window->SetSize(size);
+
+        auto display = wxDisplay().GetClientArea();
+        if (((pos.x + size.x / 2) < display.GetRight()) && (pos.y + size.y/2 < display.GetBottom()))
+            window->Move(pos);
+
+        window->Maximize(std::get<2>(tmp));
+    }
+    catch (std::out_of_range e) {
+        // config was empty
+    }
+}
+
+void App::load_presets() {
+/*
+    for my $group (qw(printer filament print)) {
+        my $presets = $self->{presets}{$group};
+        
+        # keep external or dirty presets
+        @$presets = grep { ($_->external && $_->file_exists) || $_->dirty } @$presets;
+        
+        my $dir = "$Slic3r::GUI::datadir/$group";
+        opendir my $dh, Slic3r::encode_path($dir)
+            or die "Failed to read directory $dir (errno: $!)\n";
+        foreach my $file (grep /\.ini$/i, readdir $dh) {
+            $file = Slic3r::decode_path($file);
+            my $name = basename($file);
+            $name =~ s/\.ini$//i;
+            
+            # skip if we already have it
+            next if any { $_->name eq $name } @$presets;
+            
+            push @$presets, Slic3r::GUI::Preset->new(
+                group   => $group,
+                name    => $name,
+                file    => "$dir/$file",
+            );
+        }
+        closedir $dh;
+    
+        @$presets = sort { $a->name cmp $b->name } @$presets;
+    
+        unshift @$presets, Slic3r::GUI::Preset->new(
+            group   => $group,
+            default => 1,
+            name    => '- default -',
+        );
+    }
+*/
+}
+
 }} // namespace Slic3r::GUI
diff --git a/src/GUI/GUI.hpp b/src/GUI/GUI.hpp
index 82d6de746..219970806 100644
--- a/src/GUI/GUI.hpp
+++ b/src/GUI/GUI.hpp
@@ -1,9 +1,11 @@
 #ifndef GUI_HPP
 #define GUI_HPP
+#include <wx/toplevel.h>
 #include "MainFrame.hpp"
 #include "Notifier.hpp"
 #include <string>
-#include  <vector>
+#include <vector>
+
 
 namespace Slic3r { namespace GUI {
 
@@ -21,12 +23,19 @@ public:
     virtual bool OnInit();
     App(std::shared_ptr<Settings> config) : wxApp(), gui_config(config) {}
 
-    void check_version(bool manual) { /* stub */}
+    /// Save position, size, and maximize state for a TopLevelWindow (includes Frames) by name in Settings.
+    void save_window_pos(const wxTopLevelWindow* window, const wxString& name );
+
+    /// Move/resize a named TopLevelWindow (includes Frames) from Settings
+    void restore_window_pos(wxTopLevelWindow* window, const wxString& name );
 
 private:
     std::shared_ptr<Settings> gui_config; // GUI-specific configuration options
-    Notifier* notifier;
+    std::unique_ptr<Notifier> notifier {nullptr};
     std::vector<preset_list> presets { preset_list(), preset_list(), preset_list() };
+
+    void load_presets();
+
 };
 
 }} // namespace Slic3r::GUI
diff --git a/src/GUI/MainFrame.hpp b/src/GUI/MainFrame.hpp
index e4014a27c..085cc3922 100644
--- a/src/GUI/MainFrame.hpp
+++ b/src/GUI/MainFrame.hpp
@@ -20,16 +20,7 @@
 
 namespace Slic3r { namespace GUI {
 
-template <typename T>
-void append_menu_item(wxMenu* menu, const wxString& name,const wxString& help, T lambda, int id = wxID_ANY, const wxBitmap& icon = wxBitmap(), const wxString& accel = "") {
-    wxMenuItem* tmp = menu->Append(wxID_ANY, name, help);
-    wxAcceleratorEntry* a = new wxAcceleratorEntry();
-    if (a->FromString(accel))
-        tmp->SetAccel(a); // set the accelerator if and only if the accelerator is fine
-    tmp->SetHelp(help);
 
-    menu->Bind(wxEVT_MENU, lambda, tmp->GetId(), tmp->GetId());
-}
 
 constexpr unsigned int TOOLTIP_TIMER = 32767;
 
diff --git a/src/GUI/Preset.hpp b/src/GUI/Preset.hpp
new file mode 100644
index 000000000..e169c4827
--- /dev/null
+++ b/src/GUI/Preset.hpp
@@ -0,0 +1,17 @@
+#ifndef PRESET_HPP
+#define PRESET_HPP
+
+#include "PrintConfig.hpp"
+
+namespace Slic3r { namespace GUI {
+
+class Preset {
+
+private:
+    Slic3r::DynamicPrintConfig config { Slic3r::DynamicPrintConfig() };
+
+};
+
+}} // namespace Slic3r::GUI
+
+#endif // PRESET_HPP
diff --git a/src/GUI/Settings.cpp b/src/GUI/Settings.cpp
new file mode 100644
index 000000000..8affa6886
--- /dev/null
+++ b/src/GUI/Settings.cpp
@@ -0,0 +1,15 @@
+#include "Settings.hpp"
+
+namespace Slic3r { namespace GUI {
+
+void Settings::save_settings() {
+/*
+sub save_settings {
+    my ($self) = @_;
+    Slic3r::Config->write_ini("$datadir/slic3r.ini", $Settings);
+}
+
+*/
+}
+
+}} // namespace Slic3r::GUI
diff --git a/src/GUI/Settings.hpp b/src/GUI/Settings.hpp
index 07e219406..9c135cec3 100644
--- a/src/GUI/Settings.hpp
+++ b/src/GUI/Settings.hpp
@@ -1,13 +1,58 @@
 #ifndef SETTINGS_HPP
 #define SETTINGS_HPP
+
+#include <wx/wxprec.h>
+#ifndef WX_PRECOMP
+    #include <wx/wx.h>
+#endif
+#include <map>
+#include <tuple>
+
+#include "libslic3r.h"
+
 namespace Slic3r { namespace GUI {
 
+enum class PathColor {
+    role
+};
+
+enum class ColorScheme {
+    solarized, slic3r
+};
+
+enum class ReloadBehavior {
+    all, copy, discard
+};
+
 /// Stub class to hold onto GUI-specific settings options. 
 /// TODO: Incorporate a copy of Slic3r::Config 
 class Settings { 
     public:
-        bool show_host;
-        Settings(): show_host(false) {} //< Show host/controller tab
+        bool show_host {false};
+        bool version_check {true};
+        bool autocenter {true};
+        bool autoalignz {true};
+        bool invert_zoom {false};
+        bool background_processing {false};
+
+        bool preset_editor_tabs {false};
+
+        bool hide_reload_dialog {false};
+
+        ReloadBehavior reload {ReloadBehavior::all};
+        ColorScheme color {ColorScheme::slic3r};
+        PathColor color_toolpaths_by {PathColor::role};
+
+        float nudge {1.0}; //< 2D plater nudge amount in mm
+
+        unsigned int threads {1}; //< Number of threads to use when slicing
+
+        const wxString version { wxString(SLIC3R_VERSION) };
+
+        void save_settings();
+        
+        /// Storage for window positions
+        std::map<wxString, std::tuple<wxPoint, wxSize, bool> > window_pos { std::map<wxString, std::tuple<wxPoint, wxSize, bool> >() };
 };
 
 }} //namespace Slic3r::GUI
diff --git a/src/GUI/misc_ui.cpp b/src/GUI/misc_ui.cpp
index 278f6e4d7..ef00fa2d3 100644
--- a/src/GUI/misc_ui.cpp
+++ b/src/GUI/misc_ui.cpp
@@ -1,4 +1,6 @@
 #include "misc_ui.hpp"
+#include <wx/stdpaths.h>
+
 namespace Slic3r { namespace GUI {
 
 
@@ -26,5 +28,62 @@ const wxString home(const wxString& in) {
     return wxGetHomeDir() + "/." + in + "/";
 }
 
+
+wxString decode_path(const wxString& in) {
+    // TODO Stub
+    return in;
+}
+
+wxString encode_path(const wxString& in) {
+    // TODO Stub
+    return in;
+}
+/*
+sub append_submenu {
+    my ($self, $menu, $string, $description, $submenu, $id, $icon) = @_;
+    
+    $id //= &Wx::NewId();
+    my $item = Wx::MenuItem->new($menu, $id, $string, $description // '');
+    $self->set_menu_item_icon($item, $icon);
+    $item->SetSubMenu($submenu);
+    $menu->Append($item);
+    
+    return $item;
+}
+*/
+
+/*
+sub scan_serial_ports {
+    my ($self) = @_;
+    
+    my @ports = ();
+    
+    if ($^O eq 'MSWin32') {
+        # Windows
+        if (eval "use Win32::TieRegistry; 1") {
+            my $ts = Win32::TieRegistry->new("HKEY_LOCAL_MACHINE\\HARDWARE\\DEVICEMAP\\SERIALCOMM",
+                { Access => 'KEY_READ' });
+            if ($ts) {
+                # when no serial ports are available, the registry key doesn't exist and 
+                # TieRegistry->new returns undef
+                $ts->Tie(\my %reg);
+                push @ports, sort values %reg;
+            }
+        }
+    } else {
+        # UNIX and OS X
+        push @ports, glob '/dev/{ttyUSB,ttyACM,tty.,cu.,rfcomm}*';
+    }
+    
+    return grep !/Bluetooth|FireFly/, @ports;
+}
+*/
+/*
+sub show_error {
+    my ($parent, $message) = @_;
+    Wx::MessageDialog->new($parent, $message, 'Error', wxOK | wxICON_ERROR)->ShowModal;
+}
+*/
+
 }} // namespace Slic3r::GUI
 
diff --git a/src/GUI/misc_ui.hpp b/src/GUI/misc_ui.hpp
index cc92e5a03..5276a3f8c 100644
--- a/src/GUI/misc_ui.hpp
+++ b/src/GUI/misc_ui.hpp
@@ -39,6 +39,31 @@ const wxString var(const wxString& in);
 /// Always returns path to home directory.
 const wxString home(const wxString& in = "Slic3r");
 
+template <typename T>
+void append_menu_item(wxMenu* menu, const wxString& name,const wxString& help, T lambda, int id = wxID_ANY, const wxString& icon = "", const wxString& accel = "") {
+    wxMenuItem* tmp = menu->Append(wxID_ANY, name, help);
+    wxAcceleratorEntry* a = new wxAcceleratorEntry();
+    if (!accel.IsEmpty()) {
+        a->FromString(accel);
+        tmp->SetAccel(a); // set the accelerator if and only if the accelerator is fine
+    }
+    tmp->SetHelp(help);
+    if (!icon.IsEmpty()) 
+        tmp->SetBitmap(wxBitmap(var(icon)));
+
+    menu->Bind(wxEVT_MENU, lambda, tmp->GetId(), tmp->GetId());
+}
+
+/*
+sub CallAfter {
+    my ($self, $cb) = @_;
+    push @cb, $cb;
+}
+*/
+
+wxString decode_path(const wxString& in);
+wxString encode_path(const wxString& in);
+
 }} // namespace Slic3r::GUI
 
 #endif // MISC_UI_HPP