Hanzi/Kanji/Hanja has basically four compositions: singular, left and right, up and down and wrap. Singular is what should be designed first, and then they could be composed in different ways.
So I added four subcategories on sidebar. I hope Glyphs will have these in next update.
“Singular” = “独体字”;
“LeftAndRight” = “左右结构”;
“UpAndRight” = “上下结构”;
“Wrap” = “包围结构”;
BTW, shall I submit it to Georg or Rainer?