Each option does as follows:

YFT, YDR and YTD files have an option to "_hi it". For yft and ydr files, this creates a copy of the existing yft file and renames it to it's _hi variant. Right clicking on a .yft or .ydr file will show options to "_hi it". Choosing this will create a simple _hi version of your file.

You will also notice an option to make a new YTD file. When clicking on a file, this will create a YTD of the same name. However, when clicking in a folder itself, it will generate a blank YTD file named new.ytd.

I have also included an option to create a new Z3D file in both file and folder context menus.

It's been brought to my attention that this is falsely flagging as malicious for some people. This I believe is partly down to the lack of a commercial certificate and that this program adds to the windows registry. I can assure everyone there is nothing malicious in this and I will be open sourcing it when I get round to uploading it to github!