I have Finale V26. Here are the keys in Finale V26: C, F, Bb, Eb, Ab, Db, Gb, Cb, G, D, A, E, B, F#, C# Maybe you have a different version of Finale. Maybe, try using Muse Notation Software... I believe it's still free and it's easy to learn. Muse will give you great results without having to pay a lot of money. I've used Finale since the early 90's and I like using it because I can make the notation look any way I want it to look. Muse is fantastic for being free.
in finale i can not find Dฺฺb majer key in key signature menu.....
I have Finale V26. Here are the keys in Finale V26: C, F, Bb, Eb, Ab, Db, Gb, Cb, G, D, A, E, B, F#, C#
Maybe you have a different version of Finale.
Maybe, try using Muse Notation Software... I believe it's still free and it's easy to learn. Muse will give you great results without having to pay a lot of money. I've used Finale since the early 90's and I like using it because I can make the notation look any way I want it to look. Muse is fantastic for being free.