Modify a Block Definition and Attribute — GstarCAD 2027
Modify a Block Definition and Attribute
User Guide > Create and Modify Objects > Create and Use Blocks > Modify a Block Definition and Attribute
Modify a Block Definition
You can edit a block definition or a block reference already inserted in the drawing. If you redefine block definitions in your current drawing, all the block references will be affected simultaneously.
You have two options to redefine a block definition:
- Modify the block definition in the current drawing.
- Modify the block definition in the source drawing and reinsert it into the current drawing.
Modify a Block Definition in the Current Drawing
You can use the Block Editor (BEDIT command) to modify a block definition. If you want to edit a block without attribute, just double-click the block to open the Block Editor.

Update a Block Definition That Originated from a Drawing File
When you modify the original drawing file , block definitions which you have created by inserting a drawing file will not be updated automatically. You can use INSERT command to update a block definition from the drawing file.
Redefine Block Attributes
You can edit the value of attributes of a block reference, you can also use grips to change the location of attributes in a block. If attributes are multiple-line text, you can resize the width of the text by moving grips.