Hextra's design for an insert for Great Western Trail: New Zealand ( https://www.printables.com/model/556982-great-western-trail-new-zealand-insert ) is superb, but I had trouble scrunching up the bags of tiles into the gaps between trays. I therefore created two new trays to fit in the niches - these have slots for all the tiles along with a gap for the rolled-up empty bags.
This is not a complete design in itself - it is only any use as an addition to the original.
The author remixed this model.
This remix adds two trays to the original — one to hold the worker and hazard tiles (A) and one to hold the bonus tiles and the empty bags (B)