In order to install To-Do-O just download the provided to_do_o.jad and to_do_o.jar files, copy these on your mobile device
and start the installation by e.g. simply "executing" the to_do_o.jar file with a built in file manager.
When you start To-Do-O for the first time you will be notified that a new to-do tree is created and afterwards the empty to-do tree view is shown.
To create your first to-do entry select "Options" → "New" → "Main To-Do Entry"
(Note that at that point it is not possible to create sub items. Trying to create a sub item here will result in an error.).
For new entries a text editor is displayed in which simply a description, name or whatever appears to be useful can be entered. Finally the new entry is created by confirming with "Ok". Later on further entries and sub-entries are created analogously.
In order to save the new tree select "Options" → "File" → "Save"
You will be asked to verify your decision and if you select "Yes" the list will be saved.
When the list was saved successfully the "star" behind the "To-Do-O" title in the title bar of the application will disappear.
This indicates that the present list is saved and was not changed.
I.e. the "star" indicates that changes have been performed which have not yet been saved.
Existing items can be modified by choosing the appropriate actions from the "Options" → "Item" menu.
E.g. can to-do entries be marked as done or the displayed icon for a to-do entry can be selected
(note: selection of icons is currently only supported for to-do entries not marked as done).
In the settings menu options affecting the behavior of To-Do-O can be adjusted.
E.g. where new entries shall be placed inside the tree / sub tree.