Game Manuals and changing PS1 games' bootup splash screen?

[PlayerGameSK]

So I just gave this tool a shot today and gotta say that so far it's been great, though I have a question...

Basically I would love to be able to make my PS1 game bubbles appear as if they were official, including the manuals, the "warning" screen on bootup and such, the problem is that there seems to be no option to include your own manual, nor change the default bootup splash screen (which is just a very basic #ChovyProject logo), and so I've been wondering... are (either of) these options planned to be added by any chance?