Non-Steam Game: Start-Up Play/Configure Pop-up?

[How2BEpic]

I'm not having the easiest time looking this up so I thought I'd ask.

You know how some Steam games will have a popup upon launch that asks if you want to Play Game or Configure Settings for said game? I'd like to know if it's possible to configure a Non-Steam game to have such a pop-up.

Let's say have one option that will Launch the Standard Game, or a separate one that will instead launch a separate executable.

Another use would be for emulators, with two play buttons, one for launching Disc 1 of a game, the other Disc 2, without making multiple Non-Steam Entries.

Thanks in advance, I get really into customizing Non-Steam games with Custom Images and stuff and this would make it feel even more genuine to Steam if it's an option.

[Falro the Great]

It's not possible as far as I know. But the Library is getting an update sometime this year, so maybe post a suggestion in the suggestions forum and who knows.

[Silicon Vampire]

Those dialogue boxes are built into the structure of the individual game by the corresponding developers of each game