Timpani staff without key signature

Hello,

I’m writing and orchestral score started from the Modern Orchestra template.
I would like to have timpani in both full score and instrument one being notated without the key signature (or in C). How can I do that?

In setup, choose Add Solo Player, then in the left column of the center panel click Pitched Percussion, in the middle column, select Timpani, then in the right column select No Key Sig.

Done.

You can do as Len suggests, i.e. choosing the Timpani instrument that has the "no keysignature’ variant, by changing the existing instrument: see here.

Thank you so much.
I think I’ll leave the one with the key signature because it’s easy to write the part, changing it to no key signature before releasing the score.