How to define any key press combo in sublime snippet?

[nihalshahria]

In the snippet, first I want in $1 automatically press “ctrl+shift+,” and then my cursor would go to $2.
How can I do it?

[UltraInstinct05]

In the snippet, first I want in $1 automatically press “ctrl+shift+,” and then my cursor would go to $2.

Could you clarify on what first I want in $1 automatically press “ctrl+shift+,” means ?

[nihalshahria]

@UltraInstinct05, I meant i want my cursor at $1 and press ctrl+shift+, then my cursor go to $2

[OdatNurd]

So basically you want to have a second key binding that does was tab does in this situation?