[FR] Option to Not Store or Allocate Space for Leveling Meshes

[KillerBug]

Is your feature request related to a problem? Please describe.

With a large enough mesh and a small enough flash/EEPROM capacity, M500 and M501 stop working as there is not enough capacity. This breaks M500 and M501 for everything; not just the meshes. It also takes so long that it will trigger an 8 second watchdog timer if enabled.

Are you looking for hardware support?

No

Describe the feature you want

Add an option in Configuration_adv.h that will make M500 save everything except the leveling mesh (any mesh type including bilinear, ABL, etc). M501 would load everything except the leveling mesh. There would be no space reserved in flash/EEPROM for the leveling mesh. When starting printer from power off, a blank mesh is created in ram and leveling is required every time (or could be loaded by serial if desired).

Additional context

No response

[rondlh]

That could be useful, I never store the probe points anyway.