So if you want changes to the Staff table to Update the Training List Table then you would need to pick the staff table in the Event (not sure which one tbl_organico_storico is but it needs to be the staff table there). The update part looks good, and then the portion of the condition I can see looks good too.
Then Click Add A Step. There you will select “Create A Custom Step” Then click on the step and change “Run a Task” to “Run A Data Action”. Then select “Run action on rows” on the right hand side. Then choose the Training list table in referenced table there.
In Referenced rows you will need to select the ID of all the training list rows you want to update. Something like SELECT(Training List[Key],[Employee ID]=[_thisrow].[Key]) may work (with your column names rather than the general ones I put in). Then you will have to make an action on the training list table that updates the area from the staff table and then link that action in the referenced action field.