I just added flow variable support to my component referenced above. You can now point it to any folder location via path flow variable using the variable name “open-path” after designating it instead of the Local Workflow data folder in the Config window.
This component is designed to be a one time manual launch function that is controlled via the Interactive View (Shortcut F10), so that it it returns to bypass mode during subsequent execution runs.
Here is a workflow that you can use to test the flow variable functionality locally. Just select a local folder location.
Folder - File Open.knwf (363.0 KB)
Definitely not a hyperlink table solution, but maybe you could mine it for some workarounds… It does have the ability to select a file location from a list and open it in a 1 time action. You could certainly apply that functionality to a selection column in an interactive table.