In order to be sure that all my unit class methods don't hide virtual methods , I changed setup on warning of E1010 'Method hides virtual method of base type to Error.
Now tAdvOfficebuttons block compilation because the
[dcc32 Error] AdvOfficeButtons.pas(631): E1010 Method 'SetComponentStyle' hides virtual method of base type 'TAdvCustomGroupBox'
What to do ?