diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 04b4f34f8b..10dd0a4171 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -1196,6 +1196,16 @@
                     "limit_to_extruder": "top_bottom_extruder_nr",
                     "settable_per_mesh": true
                 },
+                "connect_skin_polygons":
+                {
+                    "label": "Connect Top/Bottom Polygons",
+                    "description": "Connect top/bottom skin paths where they run next to each other. For the concentric pattern enabling this setting greatly reduces the travel time, but because the connections can happend midway over infill this feature can reduce the top surface quality.",
+                    "type": "bool",
+                    "default_value": false,
+                    "enabled": "top_bottom_pattern == 'concentric'",
+                    "limit_to_extruder": "infill_extruder_nr",
+                    "settable_per_mesh": true
+                },
                 "skin_angles":
                 {
                     "label": "Top/Bottom Line Directions",
@@ -1644,7 +1654,18 @@
                     "type": "bool",
                     "default_value": false,
                     "value": "infill_pattern == 'cross' or infill_pattern == 'cross_3d'",
-                    "enabled": "infill_pattern == 'grid' or infill_pattern == 'triangles' or infill_pattern == 'trihexagon' or infill_pattern == 'cubic' or infill_pattern == 'tetrahedral' or infill_pattern == 'quarter_cubic' or infill_pattern == 'cross' or infill_pattern == 'cross_3d'",
+                    "enabled": "infill_pattern == 'lines' or infill_pattern == 'grid' or infill_pattern == 'triangles' or infill_pattern == 'trihexagon' or infill_pattern == 'cubic' or infill_pattern == 'tetrahedral' or infill_pattern == 'quarter_cubic' or infill_pattern == 'cross' or infill_pattern == 'cross_3d'",
+                    "limit_to_extruder": "infill_extruder_nr",
+                    "settable_per_mesh": true
+                },
+                "connect_infill_polygons":
+                {
+                    "label": "Connect Infill Polygons",
+                    "description": "Connect infill paths where they run next to each other. For infill patterns which consist of several closed polygons, enabling this setting greatly reduces the travel time.",
+                    "type": "bool",
+                    "default_value": true,
+                    "value": "infill_pattern == 'cross' or infill_pattern == 'cross_3d' or infill_multiplier % 2 = 0",
+                    "enabled": "infill_pattern == 'cross' or infill_pattern == 'cross_3d' or infill_multiplier % 2 == 0",
                     "limit_to_extruder": "infill_extruder_nr",
                     "settable_per_mesh": true
                 },
@@ -1680,6 +1701,18 @@
                     "limit_to_extruder": "infill_extruder_nr",
                     "settable_per_mesh": true
                 },
+                "infill_multiplier":
+                {
+                    "label": "Infill Line Multiplier",
+                    "description": "Convert each infill line to this many lines. The extra lines do not cross over each other, but avoid each other. This makes the infill stiffer, but increases print time and material usage.",
+                    "default_value": 1,
+                    "type": "int",
+                    "minimum_value": "1",
+                    "maximum_value_warning": "infill_line_distance / infill_line_width",
+                    "enabled": "infill_sparse_density > 0 and not spaghetti_infill_enabled and infill_pattern != 'zigzag'",
+                    "limit_to_extruder": "infill_extruder_nr",
+                    "settable_per_mesh": true
+                },
                 "sub_div_rad_add":
                 {
                     "label": "Cubic Subdivision Shell",