All you need to do is right click on the string control in the example and select display HEX.
Hex is not other content. Only another way of displaying the same binary information.
ASCII is the normal way, /codes can be interesting and password display can only be used for that.
Another possibility is to put a control of an array of bytes on the frontpanel, and convert that into a string and feed the string control with this value.
(you need to change the control into an indicator to get rid of the broken wires)
In the last version you can see what is happening.
and if you change the display format of the returned string you probably see the result.
greetings from the Netherlands