outline notes / spreadsheet

notes, todo, accounting, calculations

Primary features:
- 6 level tree with arbitrary node relocation
- calendar, dates, todo and done marks
- save/load data to Google Drive
- add any custom columns (numbers, dates, notes, category/choice)
- search and sort any columns
- calculate totals for any number columns
- setup visibility and order for columns
- color schemes for grid and calendar
- import/export notes
- and many others...