cordova - How to use collapse_key with GCM and Phonegap PushPlugin -

cordova - How to use collapse_key with GCM and Phonegap PushPlugin -

i'm able send gcm notifications payload using pushplugin phonegap. need send-to-sync message. read , understand, messages without payload , collapse_key way go. however, couldn't figure out how implement , utilize pushplugin.

if don't alter plugin's code, i'm able property message, in device, payload. expecting not utilize property , able property collapse_key in device, looks doesn't work way or not implemented pushplugin.

am right or there's way go?

thank you.

cordova push-notification phonegap-plugins google-cloud-messaging