insert new attributes into block with existing attributes

[iccea]

Good morning to all,
I can't insert new attributes into a block with existing attributes without exploding it.
Can you tell me the command to use? Thank you.

 

[MassiVonWeizen]

I guess you're talking about autocad, which fits us with rapid prototyping?
However enter the block, enter the attribute, exit the block saving, sync the block