Procedural Tasks can be added to a step from side panel in Design Mode by navigating to the "Info" tab and clicking on the "+ Add New Task" button below the step description. Step 1 of the public process "Riffyn: Cell Culture (& Variance Analysis" has multiple procedural tasks:
Procedural Tasks are specific to a step, but are numbered across all steps in a process. If step 1 has Procedural Tasks 1-4, then the next Procedural Task added will be #5 regardless of the step it is added to.
Procedural task can contain text input and attached files: