Creating the first 2 lanes within a pool is easy, as it works just like "normal" ARIS modelling where you drop a lane on a pool.
Adding lanes should be simplified as the current way via the BPMN menu is a-typical and confusing.
Designers are used to the way of working with the 'plusses' or with the dropping of objects on a connection which then adds that element in between. Why can't handling lanes be made as simple as well?
General feedback from our business users is that this is really not intuitive currently. They get the impression that they don't have permissions to change the diagram.