General usage of the UTF-8 functions supplied with the Linux Template Stack is explained HERE.
Look at this first if you have not done so already.

You will, of course, wish to investigate the contents of the buttons which appear on the front of the stack. Apart from that,
I suggest you look here:

Click on the big button to practise creating folders, files, and file content.
Afterwards, select a folder or file in the fields at the bottom and click on the appropriate delete button for removal.

The practice folders and files you create will be in the "practice" sub-folder of the main program folder, and as you can see,
the folders and files are created independently (i.e. not one inside the other):

As you will observe in the demo's coding, the way to display prompt messages in answer dialogues is to use the htmlText
property, not UTF-8 encoding. But this does not serve for the buttons in an answer dialogue, which are more limited.
However, you can use Latin text, and I have given you some examples in Portuguese (with accents).

Later on, I intend to elucidate further on this subject with experiments in putting foreign and Latin text into other entities,
such as widgets other than fields, menus, etc. This is not such a simple matter as one might think, and workarounds
might not always be possible in the current state of Rev's IDE. To see what is immediately available in this regard, please
refer to Rev's Unicode Lesson.