added doc to explain how to reset filament status to pulling from spool

README.md

@@ -806,6 +806,10 @@ To change for a particular gate use a command in this form:
 
 > MMU_SET_GATE_MAP GATE=8 MATERIAL=PLA COLOR=ff0000 AVAILABLE=1
 
+If you remove buffered filament from a gate and want to quickly tell Happy Hare that it is loading from spool again (for slower loads) the easiest way is simply this:
+
+> MMU_SET_GATE_MAP GATE=8 AVAILABLE=1
+
 > [!IMPORTANT]  
 > There is no enforcement of material names but it is recommended use all capital short names like PLA, ABS+, TPU95, PETG. The color string can be one of the [w3c standard color names](https://www.w3schools.com/tags/ref_colornames.asp) or a RRGGBB red/green/blue hex value. Because of a Klipper limitation don't add `#` to the color specification.
 

doc/command_ref.md

@@ -54,7 +54,7 @@ Firstly you can get a quick reminder of commands using the `MMU_HELP` command fr
   | Command | Description |                             Parameters                           &nbsp |
   | ------- | ----------- | ---------- |
   | `MMU_CHECK_GATES` | Inspect the gate(s) and mark availability | `GATE=[0..n]` The specific gate to check <br>`TOOL=[0..n]` The specific too to check (same as gate if no TTG mapping in place) <br>`TOOLS={csv}` The list of tools to check. Typically used in print start macro to validate all necessary tools <br>If all parameters are omitted all gates will be checked (the default) <br>`QUIET=[0\|1]` Optional. Supresses dump of gate status at end of checking procedure |
-  | `MMU_SET_GATE_MAP` | Optionally configure the filament type, color and availabilty. Used in colored UI's and available via printer variables in your print_start macro | `RESET=[0\|1]` If specified the 'gate_materials, 'gate_colors' and 'gate_status' will be reset to that defined in mmu_parameters.cfg <br>`DISPLAY=[0\|1]` To simply display the current gate map <br>The following must be specified together to create a complete entry in the gate map: <br>`GATE=[0..n]` Gate numer <br>`MATERIAL=..` The material type. Short, no spaces. e.g. "PLA+" <br>`COLOR=..` The color of the filament. Can be a string representing one of the [w3c color names](https://www.w3.org/TR/css-color-4/#named-colors) e.g. "violet" or a color string in the hexadeciaml format RRGGBB e.g. "ff0000" for red. NO space or # symbols. Empty string for no color <br>`AVAILABLE=[0\|1]` Optionally marks gate as empty or available <br>`QUIET=[0\|1]` Optional. Supresses dump of current gate map to log file |
+  | `MMU_SET_GATE_MAP` | Optionally configure the filament type, color and availabilty. Used in colored UI's and available via printer variables in your print_start macro | `RESET=[0\|1]` If specified the 'gate_materials, 'gate_colors' and 'gate_status' will be reset to that defined in mmu_parameters.cfg <br>`DISPLAY=[0\|1]` To simply display the current gate map <br>The following must be specified together to create a complete entry in the gate map: <br>`GATE=[0..n]` Gate numer <br>`MATERIAL=..` The material type. Short, no spaces. e.g. "PLA+" <br>`COLOR=..` The color of the filament. Can be a string representing one of the [w3c color names](https://www.w3.org/TR/css-color-4/#named-colors) e.g. "violet" or a color string in the hexadeciaml format RRGGBB e.g. "ff0000" for red. NO space or # symbols. Empty string for no color <br>`AVAILABLE=[0\|1\|2]` Optionally marks gate as empty (0) or available from spool (1) or available from buffer (2) <br>`QUIET=[0\|1]` Optional. Supresses dump of current gate map to log file |
   | `MMU_REMAP_TTG` | Reconfiguration of the Tool - to - Gate (TTG) map.  Can also set gates as empty! | `RESET=[0\|1]` If specified the Tool -> Gate mapping will be reset to that defined in mmu_parameters.cfg <br>`TOOL=[0..n]` Tool to set in TTG map <br>`GATE=[0..n]` Maps specified tool to this gate (multiple tools can point to same gate) <br>`AVAILABLE=[0\|1]`  Marks gate as available or empty <br>`QUIET=[0\|1]` Optional. Supresses dump of current TTG map to log file <br>`MAP={csv}` List of gates, one for each tool to specify the entire TTG map for bulk updates |
   | `MMU_ENDLESS_SPOOL` | Modify the defined EndlessSpool groups at runtime | `RESET=[0\|1]` If specified the EndlessSpool groups will be reset to that defined in mmu_parameters.cfg <br>`GROUPS={csv of groups}` The same format as the default groups defined in mmu_parameters.cfg. Must be the same length as the number of MMU gates | `QUIET=[0\|1]` Optional. Supresses dump of current TTG and endless spool map to log file <br>`ENABLE=[0\|1]` Optional. Force the enabling or disabling of endless spool at runtime (not persisted) |
   <br>