Marlin Menus Explained

Hi,
back form the dead 3 years ago with my mendel prusa, nad tonokip alteres firmware,
I now have a prusa i3 with Marlin.
I've been googling like crazy and still can't find nowhere where all the menu itens on the MArlin menu are explained.
I see some sites with the menu tree, but none with them explain (what does each item does). Example: " Menu> Tune> Flow" of course I know what that does. But... " Menu> Tune> Flow 0"..what is flow 0?

Also, in with file on the Marlin firmware can I add menu items?
thanks
M

Come across the below in the forums which helped me a lot..... There was a item about using an opto stop to pause print when filament runs out.

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Adding home x to the LCD is easy. All you need to do is find the following in ultralcd.cpp

MENU_ITEM(gcode, MSG_AUTO_HOME, PSTR("G28"));

Then add this after

MENU_ITEM(gcode, "Auto Home X", PSTR("G28 X0"));
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This helped me to added two new menus for my Openbeam Core XY reprap, Homing just the X and Y axis and also one for moving my Z axis to its max position (200mm) for removing printed parts.
eg.. added:
MENU_ITEM(gcode, "Auto Home XY", PSTR("G28 X0 Y0"));
MENU_ITEM(gcode, "Lower Z Axis", PSTR("G1 Z200"));

Most of the existing Marlin menu items are referenced to the lauguage.h sketch which allows for change of lauguage. Hopefully this may help you see how the existing menus operate back to g code commands.

Haven't come across a detailed description of how the menu works in any fine detail.

Cheers..

Great call reprot,
I'll look into it. thanks

Macsoft, did you ever find information on Menu>Tune> Flow and the Flow 0 items ?

Thanks,
Martin

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Prusa i3 EiNSTeiN Varient - I mounted my Y motor backwards, and loved every minute of it
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Nope. I'm just ignoring flow0

Marlin is a bit sad on documentation, I guess rapid development pace has caused that.
I dabble as a user of other Open Source firmware as well, like the Arduino based Arducopter and Arduplane flight controller systems, and they have awesome documentation. Every single configurable parameter is documented in the Wiki or a guide, and there are hundreds of them that can be changed.
Makes me really appreciate what they did on that project, not that I'm in any way unhappy with Marlin. When the documentation catches up it will be awesome too

In the meantime it's read source code (that I don't understand) or filter the WWW for scraps of info. If I work it out myself I'll let you know...

I have the same problem, I can sort of guess what they are for but would prefer to be certain about each menu item. When I'm not suffering from sleep deprivation I'll go through the marlin code in arduino and see if there is not a desciption in the code. I believe there would be some sort of description albeit sparce.