I have updated the Rhythm package to add the following nodes.
This is also achievable utilizing other packages available. But these require you to extract the value of the text then apply the String.Upper node to them. Andreas Dickman’s nodes are wonderful for this functionality.
Rhythm’s method takes the text element right away. There is an animation below showing how these work. (my mouse goes off the screen to click run)
Update Rhythm via the Dynamo package manager.