Sequental participant id / session

Hello, I am building an online experiment using PsychoPy (PsychoJS) and sync it to pavlovia) after building several experiments in jsPsych and sync it to Pavlovia. Using jsPsych, I had the session_id parameter that incidated sequental running of the experiment, giving me some kind of sequental id to work with. I can’t find a decent way to do it using psychopy, due that the session id and participant id are needed to be selected by the participant (with default value that can be constant or random only). There is somehting I missed there? there is an option for real session number \ sequental id?

You could use this tool.

Amazing work, thanks!