It's on the todo list, basically import command. It takes a bit of work, but hopefully will do soon.
0.7 compression update
Improvements to nbt data generation, nbt json encoding follows minecraft format which is more compressed. Also trimed redundant elements from name and lore text. Fixed some issues with lore lines and carriage return.
Added minecraft formated json encoding method, option for minecraft/standard (extras)
Added name item short/long option for servers (extras)
Improved Lore nbt generation and removed superfluous elements