This was brought up under a topic that has exceeded the 60 cut-off, so a new start needs to be made!
Indented lists in game panes are very useful. A new sequence of one-room games, Escape the Podcast is using this facility. Unfortunately the second game shows up a flaw that was flagged up in the previous discussion: some items in transparent containers can show up outside their container. See game for clarification: two roosters in separate cages appear to be in the same cage:
Any suggestions for a fix or workaround?