Editable legends/classes in AGOL and Maps for Office

Idea created by HeinekenAME on Mar 7, 2013
    The default legens are often unclear because the classes are not divided in round numers (so I would prefer to see classes from 1-10 and 10-20 in stead of 1,1948384291-9,293847381 etc.).
    The only way to change it is in powerpoint, but it would be useful to have that function in arcgis online portal and excel as well.