finger snap in drum kits

[inka]

so im trying to write a song for my girlfriend and i want there to be a part after the chorus where theres drums that go kinda like this; 
but i also want there to be a finger snap like the metronome for the part.. but i cant seem to make it and chats off so i cant ask for help.

i dont know how hard coding is but.. again im not an expert at making os sounds but i dont think making the sound would be that hard right? again im sorry if it is, i know nothing about this stuff.

[Vladimirr]

You're gonna want to use a castanet.