Normal Way:
I can move it to the desire folder(contains SVG file) eg. D:\svg\ then launch the bat file. ---it works.
But I don't wanna always have to move that bat file to the desire folder with SVG, so I tried to create a button.
TC Way:
1. I just drag the bat file to the toolbar. I only changed the Start Path to %P. ---When I navigated to the desire folder on TC then click the button, it failed.
2. While if I changed the Start Path to exactly D:\svg\, the I navigated to a random folder on TC, it works(Of course it works, I know)
But why %P doesn't work? And how to make it(TC Way 1) works??

Thanks in advance.
Regards