In Bambu Studio, Click on the Objects tab, then right click on "Name Text - Edit This", and "Title Text-Edit This". That should pull up a window to edit the text. There you can change the text itself, font and size.
Also is included a Fusion 360 File that has parameters for dimensions if you want a different size Name Plate.
The default settings do not include a brim, but please add one if you are worried about perfect bed adhesion. That may give you a better surface for the name.
The font in this file was created with the PC version of Bambu Studio. If you are using the Mac version the fonts may be different.
**Warning** Some users have noticed that after changing the text, that the name plate is no longer on the first layer. This may cause a problem in your print. Please verify that the first layer consists of the text and the name plate. If you think you know why this is happening in some instances please send me a PM.