Working a bit on load unload

StaticData/SliceSettings/Layouts.txt

@@ -198,11 +198,11 @@ Printer
     Material Loading
       Loading
         load_filament_length
+        unload_filament_length
         load_filament_speed
         trim_image
         insert_image
         running_clean_image
-        unload_filament_length
   G-Code
     G-Code
       G-Code

StaticData/SliceSettings/Properties.json

@@ -44,8 +44,8 @@
   },
   {
     "SlicerConfigName": "load_filament_speed",
-    "PresentationName": "Load Filament Speed",
-    "HelpText": "The speed to run filament into the printer when loading.",
+    "PresentationName": "Filament Speed",
+    "HelpText": "The speed to run filament into and out of the printer.",
     "DataEditType": "POSITIVE_DOUBLE",
     "Units": "mm/s",
     "ShowIfSet": "!sla_printer",

StaticData/SliceSettings/load_filament.txt

@@ -1,5 +1,6 @@
 ; host.choose_material(title:"Choose the material that you are loading.")
 
+M106 S0 ; turn off the fan
 M104 S[temperature] ; start heating up the extruder
 
 ; host.show_message(title:"Trim the end of the filament to ensure a good load.", image:"[trim_image]", wait_ok:"true")

StaticData/SliceSettings/unload_filament.txt

@@ -1,6 +1,7 @@
 ; host.choose_material(title:"Confirm the material you are unloading.")
 
 ; host.show_message(title:"Waiting for extruder to heat to [temperature], before unloading.")
+M106 S0 ; turn off the fan
 G4 S1               ; wait message to display
 M109 S[temperature] ; heat up the extruder