Copies of meshes

Hi,

I have number of totatlly the same meshes copied many times in grasshopper c sharp.

What I am looking for is if there is a similar thing to blocks.

After copying,rotating number of meshes, I want to change just only one object and other copies would update accordingly.

I just do not want to loop through each of copies and change them in a loop.

Or in this way it is still an only option - rhino blocks?

If you copy them, then you’ll have to re-apply the modification. Blocks are no copies. Only one geometry is stored, and then visual instances are shown.