OK, do to the walkthrough mods being out of date, here's a tool that I use regularly to see what's behind most of the Ren'py story choices. As well this tool can inform a user when a story requirement is queued and checked in the story (Image included....shows that a text box will appear at the top left hand corner of your screen when a choice happens).
Please note...This tool (0x52_URM) will not break game saves, unlike like some of wt mods if not present when trying to load a save flie. But remember that this tool is not a walk though mod. (But I'm glad to see a save file fix was added recently in the thread...thanks for posting it, as it saved me having to restart my game.)
To install.... Extract and copy the 0x52_URM file into your "game" folder... Also note that this tool can be used for almost all other Ren'py titles, and it can be used with or without a wt mod (provides more detailed information alongside a wt-mod).
Also... Posting this for anyone wanting to know how to take a screenshot, just hit " alt S "