Hidden roll

Is there a way for a player to trigger a roll that only gm will be able to see? Whisper allows for only player and gm to see the roll unfortunatelly.

Not without the help of an API script, which is a pro level feature.

Shame. 

Yes you can using inline rolls  and the /w gm command /w gm [[1d6]] will only be seen by the player and the GM Edit: Thanks Scott, I'm having an off day

You can do a sort of workaround via  ability command buttons or  API Command Buttons (does not require pro level sub). So the player will whisper you a button to make the roll. It won't actually affect who's making the roll, but if your players really don't want you doing anything in regards to their characters without their input, then it might make them feel better.