You can place kanji in one of five practice sets and also make notes about each kanji.
You can choose the practice set to store a kanji in using the drop down menu in the toolbar. Then simply click the button with the tick icon to add or remove the kanji from that set.
The practice sets are accessed in the Navigation Area along with the other sets.
Practice sets can be shared with other iKanji users or imported using the commands in the Kanji menu.
Click the Notes button in the toolbar to display the notes window. Here you can type any additional information you like about a given kanji in plain text. The note displayed will always reflect your current selection in the Kanji List.
Notes can also be shared or imported from other iKanji users from the Kanji menu.