Getting player username for gui

To get the username or minecraft name of the player and show it as text in your gui do these steps.

1. create a label
2. at the place you write the text you will see a dropdown that says "fixed"
3. to make the text say the players username you will need to make a procedure
4. create a new procedure and name it something like "LabelTextValue" (name doesn't matter)
5. get the "return text" block from the flow control section
6. get the "get display name of entity" from the entity data section
7. save the procedure
8. go back to the gui and click the dropdown that says "fixed" again
9. you will see the procedure you created
10. click on it and save the label
11. Now you have a label that gets the username of the player!