How to incrementally duplicate square

[guangyul36706173]

like this below picture,  I have tried Blend Tool but it does not work. Anybody has any idea how to achieve this looks

[sishamIAGD]

You could use the offset tool..?

https://helpx.adobe.com/uk/illustrator/using/duplicating-objects.html#offset_duplicate_objects

[Rob de Winter]

Using Object > Offset Path is the best option I think (I'll think about a faster solutions 😉 ). Because "Transform Again" is not available, I think creating an action would be the fastest way to replicate the action again. Just open up the Actions panel in the Windows menu, create a new action, record the Offset Path step, stop it and play the action again and again. Hope this helps!