How to send data from jitsi meet front end browser to Jigasi?

Hello, Good day to all of you.
I want to send some data (e.g some user choice selected from browser) to Jigasi. How can I do that?

Note: There is a command SendCommandOnce , what does it do? And also can I send data to both Jicofo and Jigasi in a same way?

This uses xmpp presence which reaches both.