diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index b9b25c16a..dd5c52218 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -2264,6 +2264,22 @@ void GLCanvas3D::on_char(wxKeyEvent& evt)
 #endif /* __APPLE__ */
                 post_event(SimpleEvent(EVT_GLCANVAS_SELECT_ALL));
         break;
+#ifdef __APPLE__
+        case 'c':
+        case 'C':
+#else /* __APPLE__ */
+        case WXK_CONTROL_C:
+#endif /* __APPLE__ */
+            post_event(SimpleEvent(EVT_GLTOOLBAR_COPY));
+        break;
+#ifdef __APPLE__
+        case 'v':
+        case 'V':
+#else /* __APPLE__ */
+        case WXK_CONTROL_V:
+#endif /* __APPLE__ */
+            post_event(SimpleEvent(EVT_GLTOOLBAR_PASTE));
+        break;
 #ifdef __APPLE__
         case WXK_BACK: // the low cost Apple solutions are not equipped with a Delete key, use Backspace instead.
 #else /* __APPLE__ */
diff --git a/src/slic3r/GUI/GUI_ObjectList.cpp b/src/slic3r/GUI/GUI_ObjectList.cpp
index 5216ed981..f8ad8b7bb 100644
--- a/src/slic3r/GUI/GUI_ObjectList.cpp
+++ b/src/slic3r/GUI/GUI_ObjectList.cpp
@@ -589,6 +589,10 @@ void ObjectList::key_event(wxKeyEvent& event)
     }
     else if (wxGetKeyState(wxKeyCode('A')) && wxGetKeyState(WXK_CONTROL/*WXK_SHIFT*/))
         select_item_all_children();
+    else if (wxGetKeyState(wxKeyCode('C')) && wxGetKeyState(WXK_CONTROL))
+        wxPostEvent((wxEvtHandler*)wxGetApp().plater()->canvas3D()->get_wxglcanvas(), SimpleEvent(EVT_GLTOOLBAR_COPY));
+    else if (wxGetKeyState(wxKeyCode('V')) && wxGetKeyState(WXK_CONTROL))
+        wxPostEvent((wxEvtHandler*)wxGetApp().plater()->canvas3D()->get_wxglcanvas(), SimpleEvent(EVT_GLTOOLBAR_PASTE));
     else
         event.Skip();
 }
diff --git a/src/slic3r/GUI/KBShortcutsDialog.cpp b/src/slic3r/GUI/KBShortcutsDialog.cpp
index fb84c2d27..65abba319 100644
--- a/src/slic3r/GUI/KBShortcutsDialog.cpp
+++ b/src/slic3r/GUI/KBShortcutsDialog.cpp
@@ -131,6 +131,8 @@ void KBShortcutsDialog::fill_shortcuts()
     plater_shortcuts.push_back(Shortcut(ctrl+"A",   L("Select All objects")));
     plater_shortcuts.push_back(Shortcut("Del",      L("Delete selected")));
     plater_shortcuts.push_back(Shortcut(ctrl+"Del", L("Delete All")));
+    plater_shortcuts.push_back(Shortcut(ctrl+"C",   L("Copy to clipboard")));
+    plater_shortcuts.push_back(Shortcut(ctrl+"V",   L("Paste from clipboard")));
     plater_shortcuts.push_back(Shortcut("M",        L("Gizmo move")));
     plater_shortcuts.push_back(Shortcut("S",        L("Gizmo scale")));
     plater_shortcuts.push_back(Shortcut("R",        L("Gizmo rotate")));
@@ -172,8 +174,8 @@ void KBShortcutsDialog::fill_shortcuts()
     Shortcuts layers_slider_shortcuts;
     layers_slider_shortcuts.reserve(6);
 
-    layers_slider_shortcuts.push_back(Shortcut(L("Arrow Up"),   L("Move current slider thump Up")));
-    layers_slider_shortcuts.push_back(Shortcut(L("Arrow Down"), L("Move current slider thump Down")));
+    layers_slider_shortcuts.push_back(Shortcut(L("Arrow Up"),   L("Move current slider thumb Up")));
+    layers_slider_shortcuts.push_back(Shortcut(L("Arrow Down"), L("Move current slider thumb Down")));
     layers_slider_shortcuts.push_back(Shortcut(L("Arrow Left"), L("Set upper thumb to current slider thumb")));
     layers_slider_shortcuts.push_back(Shortcut(L("Arrow Right"),L("Set lower thumb to current slider thumb")));
     layers_slider_shortcuts.push_back(Shortcut("+",             L("Add color change marker for current layer")));
diff --git a/src/slic3r/GUI/MainFrame.cpp b/src/slic3r/GUI/MainFrame.cpp
index b356f629d..4814a35d9 100644
--- a/src/slic3r/GUI/MainFrame.cpp
+++ b/src/slic3r/GUI/MainFrame.cpp
@@ -381,9 +381,9 @@ void MainFrame::init_menubar()
 
         editMenu->AppendSeparator();
 
-        wxMenuItem* item_copy = append_menu_item(editMenu, wxID_ANY, _(L("&Copy")) + "\tCtrl+C", _(L("Copy selection to clipboard")),
+        wxMenuItem* item_copy = append_menu_item(editMenu, wxID_ANY, _(L("&Copy")) + sep + GUI::shortkey_ctrl_prefix() + sep_space + "C", _(L("Copy selection to clipboard")),
             [this](wxCommandEvent&) { m_plater->copy_selection_to_clipboard(); }, "copy_menu");
-        wxMenuItem* item_paste = append_menu_item(editMenu, wxID_ANY, _(L("&Paste")) + "\tCtrl+V", _(L("Paste clipboard")),
+        wxMenuItem* item_paste = append_menu_item(editMenu, wxID_ANY, _(L("&Paste")) + sep + GUI::shortkey_ctrl_prefix() + sep_space + "V", _(L("Paste clipboard")),
             [this](wxCommandEvent&) { m_plater->paste_from_clipboard(); }, "paste_menu");
 
         Bind(wxEVT_UPDATE_UI, [this](wxUpdateUIEvent& evt) { evt.Enable(can_select()); }, item_select_all->GetId());
diff --git a/src/slic3r/Utils/Http.cpp b/src/slic3r/Utils/Http.cpp
index 801c5cf40..79c4ecfa9 100644
--- a/src/slic3r/Utils/Http.cpp
+++ b/src/slic3r/Utils/Http.cpp
@@ -228,6 +228,7 @@ std::string Http::priv::body_size_error()
 void Http::priv::http_perform()
 {
 	::curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
+	::curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
 	::curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writecb);
 	::curl_easy_setopt(curl, CURLOPT_WRITEDATA, static_cast<void*>(this));
 	::curl_easy_setopt(curl, CURLOPT_READFUNCTION, form_file_read_cb);
diff --git a/xs/xsp/TriangleMesh.xsp b/xs/xsp/TriangleMesh.xsp
index edfb4a198..e519f9210 100644
--- a/xs/xsp/TriangleMesh.xsp
+++ b/xs/xsp/TriangleMesh.xsp
@@ -180,6 +180,8 @@ SV*
 TriangleMesh::slice(z)
     std::vector<double> z
     CODE:
+        THIS->require_shared_vertices(); // TriangleMeshSlicer needs this
+
         // convert doubles to floats
         std::vector<float> z_f = cast<float>(z);
         
@@ -210,6 +212,7 @@ TriangleMesh::cut(z, upper, lower)
     TriangleMesh*   upper;
     TriangleMesh*   lower;
     CODE:
+        THIS->require_shared_vertices(); // TriangleMeshSlicer needs this
         TriangleMeshSlicer mslicer(THIS);
         mslicer.cut(z, upper, lower);