Hi @charlie2 - please reread my last reply to you. I cannot see all the information required from a PDF only. You would need to share the project file itself (or a version of it showing just an extract if you don’t want to share the whole thing) for anyone to give you more specific advice.
I strongly recommend not adding titles directly on pages, as I have already said. Remove all your manual overrides from all pages. Rename flows in the ways described in the links I shared above: either in the Flows panel in Setup mode, or in the Project Info dialog. If you do that, no search and replace is necessary: updating information in Project Info causes all corresponding tokens everywhere in the project to update and show the current, correct information.
I can’t think of a reason for not splitting these scenes into separate flows, so I suggest you do that. If you don’t want a double barline at the end of each flow, change that. If you don’t want a gap between flows in playback, change that. I don’t know how you want to divide information for “scene title” and “hour” for showing in headers etc, but you can utilise any of the fields in Project Info and add the relevant tokens to flow headings / the running header in the Default master page.
Your score is over 400 pages long - please reread the suggestions I made to you in my last reply about reducing the staff size so you can fit 2 systems per page, this will massively reduce the page count and make it much easier to use.
As for a scene list, you can create this yourself using tokens in a text frame, formatted however you like. If you want the scene list to appear in multiple layouts, create a custom master page that you can then add to all relevant layouts - with again the benefit of any changes you make to the master page automatically getting updated in all layouts at once, rather than manually changing them all individually.
Finally, please don’t copy and paste messages with minor edits/additions - perhaps this was an automatic error from your email provider, but if so be aware of that - it makes it look like you haven’t read my previous reply, which I did put some time and thought into to try to help you, and that makes me a bit sad. If you want help, please make it clear what you’re asking for. I’m happy to help, but my time is limited.