I have a style named for example song1.sty. I have also a registration file named song1.rgt. I have a .txt file named song1.txt.
These 3 files are set in a folder named song1.
How can I autoload the registration file when I load the song1.sty file ?
You can't use a style to load a registration, but you can use a registration to load a style. That is probably one of the main uses for registrations!
So you simply memorise the style along with the other parameters when you make the registration.
Then when you load and select the registration, the style will be loaded!
You can also include the text file in the registration, and then it will also be loaded when you select the registration, although I believe that you have to open the text display yourself.
However on Genos, you can also include the registration in a Playlist, and then you can edit the Playlist record so that when you select it, the style and other parameters will be loaded and the text file can be displayed automatically.
Have a look at the section about Registrations and Playlists starting on page 91 of the Genos Owner's Manual
Regards
Ian