Add Lyrics, please
Is there any way for now?


Yes: type them in in the field UNSYNCEDLYRICS


I do not see the field and not the icon, you can show me a screenshot please?


What good would a screenshot be if you cannot see how to call that function.
There are at least 3 GUI-ways to enter this information:
Either, use the "Extended tags" dialogue (press Alt-T)
or add a field to the tag panel
or add a column in the files list.

And also: read the help file.