Aaaaaaa...... Montage Review...... This is a “terrible dream” :)))
Montage page is a lot of work.
I must rest.

canvas is to be able to write text

I don’t quite understand what kind of text you are writing about?

If it can't load event data it writes "No data"over the image. Really not needed. Can be done other ways.

Ok.

Is Live mode required?
In essence, this is a duplication of the Montage page, but with FPS = 1.
FPS = 1-5 - this would be very good for a narrow network channel on both Montage and Montage Review

No it is not. I would really like to merge these two views. At the moment montage is much better.

I will be committing a branch tomorrow that adds an fps limiter to montage.

Why not make a single page for live viewing and for viewing recordings?
For example, you can make such a page based on Montage page.

@connortechnology
What is this button on Montage page for and does it work?

When you press it, the camera control panel appears, but there is no image from the camera.

It is a leftover from the past. In the past everything was popups. It is the PTZ ui for cameras that support it. It doesn't have it's own image feed, it would control the image feed in the montage. Problem is that every camera can have different controls. So how it looks is camera dependent. I'm not sure how useful it is, and since it is broken and no one has complained... perhaps it could just go away.

I think maybe you deleted the question about ZM_OPT_CONTROL. For js land, all is provided by web/skins/classic/js/skin.js.php. All but a few config variables are exposed there.

For php it is in web/includes/config.php.in (which becomes config.php).

It is a leftover from the past.
...... perhaps it could just go away.

Got it, I’ll leave it “as is” for now, I won’t delete it. I thought that maybe something was broken on me. I also don’t see the point in this page if the camera can be controlled on the Watch page.

The only point would be to do so while watching multiple feeds. Which is a valid use case, maybe you have multiple cameras from different angles watch a scene...

The only point

Yes, it’s possible, but now I definitely won’t do it, because... a lot of work on partially converting the Montage page to Ajax and integrating it with Montage Review.

I think maybe you deleted the question about ZM_OPT_CONTROL.

Yes, I deleted the message because... I have access to the ZM_OPT_CONTROL constant in my PHP code, but I still don’t understand where it is defined.

For php it is in web/includes/config.php.in (which becomes config.php).

The fact of the matter is that there is no ZM_OPT_CONTROL constant in config.php
It probably comes from SQL somewhere and must be defined in PHP somewhere.

It is in the database.
config.php loads /etc/zm.conf to find out where the database is. Then loads the contents of the Config table.

database config entries are defined in scripts/ZoneMinder/lib/ZoneMinder/ConfigData.pm.in, but for dev purposes you can just add it to a file in /etc/zm/conf.d/newconfig.conf

Thanks, I got it.