Saved from: https://autocadtips.wordpress.com/2011/12/15/super-secret-edit-those-un-editable-blocks/

Intead of knocking over your cubicle because you can’t edit a block, there is an AutoCAD system variable that lets you lock your blocks from being able to edit them in the Block Editor. So if you cannot explode a block or edit in the block editor, this tip is for you.

  • The system variable is BLOCKEDITLOCK and can be set to either 1 or 0 (zero)
  • <0> = Off – Block Editor can be opened
  • <1> = On – Block Editor cannot be opened

~enjoy

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