Transposition and Flows

I wrote a short score in key of F but should have been Eb. How can I transpose the entire score? I tried creating a new flow, but am not understanding how that would work.

Try Write>Transpose (don’t have anything selected and the whole flow will transpose)

But what selections do I make on the transpose screen? I don’t see where you select the new key? Very frustrating to me as a Finale user.

Use the calculate interval section to determine the transposition (In your case from F to Eb… hit apply)
You want to change key signatures, so tick the box.

Click OK and your whole flow will transpose complete with key signatures chord symbols etc.

(Note: If you have anything selected in your flow only that will be transposed!! So I just hit esc before loading the transpose dialog.