In Automator, can I combine 2 or more variables into a new variable?
Finally, there is no "combine variables" action per say in automator, but you can add a custom text variable, and drag another variable from the library variables into any part of the text in the value field. In my case, needing to combine paths to folders, this is the same thing. 


create a "text" variable from Variables &gt; Text &amp; Data &gt; Text.
Drag the desired variable into the "Value" field anywhere you need it.


Done. You can now add the text-variable you just made to the "copy Finder items" action as the destination. This enables you to use it on ANY system, ANY user. Very handy for an installation file, or any dock-app with custom paths (but still relative paths to whatever user is logged in).