diff --git a/SlicerConfiguration/SlicerMapping/EngineMappingMatterSlice.cs b/SlicerConfiguration/SlicerMapping/EngineMappingMatterSlice.cs
index cc0eb41c5..01c721674 100644
--- a/SlicerConfiguration/SlicerMapping/EngineMappingMatterSlice.cs
+++ b/SlicerConfiguration/SlicerMapping/EngineMappingMatterSlice.cs
@@ -136,6 +136,8 @@ namespace MatterHackers.MatterControl.SlicerConfiguration
 
 			new MapItemToBool("generateSupport", "support_material"),
 
+			new MapItem("supportPercent", "support_material_percent"),
+
             //infillExtendIntoPerimeter=0.06 # The amount the infill extends into the perimeter in millimeters.
             new MapItem("infillExtendIntoPerimeter", "infill_overlap_perimeter"),
 
diff --git a/SlicerConfiguration/SlicerMapping/EngineMappingSlic3r.cs b/SlicerConfiguration/SlicerMapping/EngineMappingSlic3r.cs
index bdd4b1d4d..b90086a55 100644
--- a/SlicerConfiguration/SlicerMapping/EngineMappingSlic3r.cs
+++ b/SlicerConfiguration/SlicerMapping/EngineMappingSlic3r.cs
@@ -70,6 +70,7 @@ namespace MatterHackers.MatterControl.SlicerConfiguration
 					hideItems.Add("repair_outlines_keep_open");
 					hideItems.Add("complete_objects");
 					hideItems.Add("output_filename_format");
+					hideItems.Add("support_material_percent");
 					hideItems.Add("post_process");
 					hideItems.Add("extruder_clearance_height");
 					hideItems.Add("extruder_clearance_radius");
diff --git a/StaticData/PrinterSettings/config.ini b/StaticData/PrinterSettings/config.ini
index 6fd7aed59..2a497f4da 100644
--- a/StaticData/PrinterSettings/config.ini
+++ b/StaticData/PrinterSettings/config.ini
@@ -132,6 +132,7 @@ start_perimeters_at_non_overhang = 0
 support_air_gap = .3
 support_material = 0
 support_material_angle = 45
+support_material_percent = 50
 support_material_create_internal_support = 0
 support_material_enforce_layers = 0
 support_material_extruder = 1
diff --git a/StaticData/SliceSettings/Layouts.txt b/StaticData/SliceSettings/Layouts.txt
index 6eb1f65b7..cea12a3f9 100644
--- a/StaticData/SliceSettings/Layouts.txt
+++ b/StaticData/SliceSettings/Layouts.txt
@@ -34,6 +34,7 @@ Intermediate
         support_material_create_internal_support
       Support Options
         support_material_spacing
+        support_material_percent
       Extruders
         support_material_extruder
   Filament
@@ -145,6 +146,7 @@ Advanced
         support_material_pattern
         support_material_spacing
         support_material_angle
+        support_material_percent
         support_material_infill_angle
         support_material_interface_layers
         support_material_interface_spacing
diff --git a/StaticData/SliceSettings/Properties.json b/StaticData/SliceSettings/Properties.json
index f0914292a..e572d00d9 100644
--- a/StaticData/SliceSettings/Properties.json
+++ b/StaticData/SliceSettings/Properties.json
@@ -914,6 +914,13 @@
     "DataEditType": "POSITIVE_DOUBLE",
     "ExtraSettings": "degrees"
   },
+  {
+    "SlicerConfigName": "support_material_percent",
+    "PresentationName": "Support Percent",
+    "HelpText": "The amount of support to generate.",
+    "DataEditType": "POSITIVE_DOUBLE",
+    "ExtraSettings": "degrees",
+    "QuickMenuSettings": [{"MenuName" : "Little", "Value": "10"},{"MenuName" : "Standard", "Value": "50"},{"MenuName" : "Lots", "Value": "90"}]  },
   {
     "SlicerConfigName": "support_material_infill_angle",
     "PresentationName": "Infill Angle",
diff --git a/StaticData/Translations/Master.txt b/StaticData/Translations/Master.txt
index 358dea060..dcdc7bcfd 100644
--- a/StaticData/Translations/Master.txt
+++ b/StaticData/Translations/Master.txt
@@ -4006,3 +4006,18 @@ Translated:Extruder Temperatures
 English:Bed Temperatures
 Translated:Bed Temperatures
 
+English:Waiting for device to connect...
+Translated:Waiting for device to connect...
+
+English:Detecting device firmware...
+Translated:Detecting device firmware...
+
+English:Detecting target firmware...
+Translated:Detecting target firmware...
+
+English:The amount of support to generate.
+Translated:The amount of support to generate.
+
+English:Support Percent
+Translated:Support Percent
+
diff --git a/Submodules/MatterSlice b/Submodules/MatterSlice
index c19453ad3..d07f673c5 160000
--- a/Submodules/MatterSlice
+++ b/Submodules/MatterSlice
@@ -1 +1 @@
-Subproject commit c19453ad3953d62a9c5387f636e1765a6366dc78
+Subproject commit d07f673c5168e9a751213f8e61a48166c370a865