simple macro

In Autocad - Can someone tell me how to write a simple macro, say for copying a block of a line from 0,0 to i,i from a for/next loop I know I can draw it but the thing I have in mind is more complicated. I'm thinking if I can do it with a line I can do it with a more complex shape???
thanks

 

[tigrek]

From Acad Menu: Tools->Macros->VBA Editor

In VBA Editor Menu: Insert->Module

In VBA Editor Help: Search Copy See Example

Hope this gives a start.