OS (e.g. Win10): Win10
PsychoPy version (e.g. 1.84.x): latest
Standard Standalone? (y/n) If not then what?: y
What are you trying to achieve?: Hello. I’d like to store trial information in the hdf5 file when recording eye-tracker (for now, through MouseGaze). For instance, I’d like to know when the gaze positions refer to the fixation cross trials versus my experimental trials (and differentiate between these as well, ofc).
What did you try to make it work?: I spent a lot of time in the Forum trying to figure out how to do this, but I’m not yet familiar with ioHub. I read that one can “send messages” to have the server store these data for you, but I do not know how to implement that 
What specifically went wrong when you tried that?: I haven’t tried anything specific.
Please, helppp 