How can I add new values to an existing database?


I am trying to add fields to an existing database separated by user (as in the image). I have the database separated by users (in this case Raul1, Rspalmam, Rspalmam2, prueba1, etc.), and what I need is to access that user (I'm doing it with TinyBD1) and add new fields to the ones that already exist ( for example: pet below user).


For example:

If your projectBucket = proyetoquizas
then blocks like this to add a tag = age with value = 23 to user = Rspalmam2