Does intra lattice plugin for grasshopper come for mac??
Give it a try; install manually.
Not at my Mac now, but I believe I successfully installed it (successfully loaded) into one of the past WIPs.
Also, this doc indicates same.
https://docs.google.com/spreadsheets/d/1g7tTWhjJBM6UJ5WDgq0E8Z7Rbj_KvJ3d5XP0ZoI9hJQ/pubhtml
Good luck!