@User xschem can import the blocks just fine, however taking decred_hash_macro as an example, excluding antenna diodes and filler cells (have commented them out) the imported schematic has 66107 standard cells, together with nets, pins, labels its a big schematic with 229659 objects, i think many schematic editors (in the open source arena) can not even load things of this size. I can process the 2 subcells and the wrapper, First picture is the overall view, 2nd is a detail with the decred_hash_macro pin list and some gates, 3rd picture shows a buffered clock, generated from a clkbuf_1 (leftmost red dot) and going into 8 flops (the other red dots). 4th picture shows the clock buffer. This is a micro analysis of one specific randomly chosen clock net :-)