Label with only one line

[NewB4a]

A very simple question:
I want to change a labels text. How can I manage to only view one line? If the value of the text will change I only want to view the new text.
Background: I use asyncstreams and only the last received text shall to be seen. But the following text always appears below the last.

 

[mc73]

Can you give the section of your code where you're setting the value of the label?
The way you describe it, I assume you're adding the last line received to the previous received text. If you need an upward way of displaying the received lines, you should set something like

currentText=newTextReceived & crlf & currentText

instead of, for example

currentText=currentText & crlf & newTextReceived

. Except if you mean something else.