Hi
In the custom page of Mida you can to find two grid.
The first indicates the conversion of the classes. example, a your TMyButton ( Name vcl component ) , will have to be converted into a firemonkey TButton ( name FM component ).
The table below indicates the properties to be converted, ( Name vcl component = TMyButton ) for example: Caption To Text.
Or one of your particular property in a standard FireMonkey.
Note that the coordinate conversion ( Left / top -> x/y ) is performed automatically by Mida.
see this video for more info :
http://www.youtube.com/watch?v=bFuSe4HKoNc Mida can not create new properties to TLabel of Fmx.
Where would you like it to be put the value of Focused.Font, Pressed.Font?