Working solution for LibreOffice 5 in AmiKit X (Windows 7)
In AmiKit X:
Open RabbitHole programs folder, located on AmiKit X desktop
Right-Click on LibreOffice icon inside RabbitHole folder
Choose "Edit in Redit" in dropdown menu
Delete the text inside the document (the old in-correct path to LibreOffice)
Paste this into the document:
C:winlaunch >NIL: soffice
Right-Click inside the document, click on Project, then click on Save in the dropdown menu.
Close the document.
Now open LibreOffice
(Double-Click on LibreOffice icon inside RabbitHole programs folder.
This will open Libre Office 5, launched from inside AmiKit X
I think the same method can be used to make VLC/Steam (etc.) work also,
but I don't know what the right path to VLC is, yet (will update when I get VLC to work!)