Block

B - enter

Name

Pick point

Select objects

Retain / Convert to block / Delete

(Option On- 1.Scale Uniformly 2. Allow Exploding)

3. Insert Block

I - enter

Name

(Option OFF - Explodee)

4. Block Editer

BE - enter

Select the Block

Ok

Modify Block

Bsave  > enter

to  save the block

Bclose > enter

to close block editor

5. Write Block

W - enter

(File Name & Path. )

6. Insert

I - enter

(Option - Browse)

Select file

Open.

Thanks to Google

Thanks to ChatGPT