Blocks handling in Grasshopper

Can Grasshopper hadle blocks ?
I have imported geomety into Rhino from ArchiCAD but they appear as blocks, which I cannot select in Grashhoppper. Exlopding is not really a solution beacuse they fall apart into several geometry and joining them does not really work.

Not without a plug-in like, e.g. Elefront or Human.
-wim

I have human installed but theres is no block item among the reference menu.


not to be confused with Human UI

I know.
But I connot find the block element within.

Under Reference tab?

there is block explode but no block, which I could use as reference

Use Elefront. It has more options for block handling.