Quick reply...

New version.
Basic POI interface: add with the button to the list, select from the list with click/tap, delete ('D'), set as goal ('S').
Unfortunately, the POI cannot be saved. Closing the application erases them. I don't know how to get inner contents of the list element (similar to innerHTML in HTML). I can and do create new elements with given parent; the elements have their own personal destructors built-in for deleting from the list; but I don't know how to save contents of the list.
Still Segmentation fault at close.
Don't be surprised if it is a power hog.