Hi there!
It is possible to create the source files needed to make a help file for your VI using LabVIEW. To do so, the VI must be documented through File=> VI Properties and then selecting Documentation from the drop down section from which the description of the VI can be filled in. (This is the real basic requirement and many more categories can be filled in if required)
A HTML or RTF file can now be created by using the File=> Print option and selecting which format and options you want displayed (Remember that the information you entered was in the Description!).
From here you can place these files where you want them - your own Help file or within LabVIEW's help files. A third party utility may be required to compile the documents into your own Help File.
Further information on creating your own help files can be found at https://www.ni.com/docs/en-US/bundle/labview/page/printing-vis.html
and https://www.ni.com/docs/en-US/bundle/labview/page/creating-compiled-help-files.html for creating the source files.
The LabVIEW Core 3 course also covers this topic and much more.
Hope this helps!
Liam A.
National Instruments
Applications Engineer
