please add a walkthrough for using minecraft structure blocks to create structures... I'm only suggesting this because you did the same for using WorldEdit

Suggesting:

Aftering making your structure and while in creative with cheats on:
Turn on "Operator Items Tab" in Options.
-> Pause menu > Options > Controls > Toggle Operator Items Tab.
Place structure blocks at opposite corners of your structure then:
-> Use the block and give both blocks the same name and set them to "Corner" block mode (bottom left corner of gui).
Saving the Sturcture:
-> Place a third structure block.
-> Give this block the same name as the previous blocks.
-> While in "Save" mode > "Detect" the structure.
--> This will allow you make sure you've set up the structure blocks correctly; as well as actually save the structure.
-> When you are satisfied click the "Save" button in the lower right corner.
--> This generates the Structure file in file location: (.minecraft/saves//generated//structures/)