If I add a new text to a frame in the mainscore and change the style, set this style in the parts too

When I add text to a frame and then select a user style (in my case a style used to set the position and style for a song number), the style should be selected in the parts too (or at least at the possibility to set the style in all parts at once).
I am scoring for Big Band and our songs are numbered. I want to have the possibility to add a Song number in the score in a way that it is added too all the parts in the same way.