Total Commander Wincmd.key ((exclusive))

It removes the "nag screen" (the initial 1-2-3 button prompt) that appears when starting the shareware version.

If the technical syncing feature is too complex, a simpler feature is a . total commander wincmd.key

Open it in Notepad, and it looks like gibberish: It removes the "nag screen" (the initial 1-2-3