How to set default properties for variables that start with specific text?

Question

Is there any way to define the properties of a variable as default by the initials of the variables?

Something like public string obsUsuario { get; set; }, all of which start with Obs by default the property IsOptional, (or/and other properties) without having to declare each time for each variable?

modelBuilder.Entity<Usuarios>().Property(prop => prop.obsUsuario).IsOptional();  

Answer 1

Just need to use a little Reflection

modelBuilder.Properties<string>()
        .Where(p => p.Name.StartsWith("descr"))
        .Configure(p => p.IsOptional());