Allow modifying alt-content fields.

Yes! I want to use the full features of Proclaim for both the full layout and the lower thirds / transparency layout for video. For example, I want to use smart media for both layouts.

My current workaround is to use the confidence monitor output for the main presentation and the normal output for the transparency slide.

With this it is critical that you can apply defaults for these virtual screens. As it stands now you can create a virtual screen and assign that screen to an output (physical or NDI), but then you have to manually tell each slide item what kind of output you want (e.g. - Background only, foreground only, duplicate, blank, etc) for that virtual screen. By default it uses "blank" so if you add a song last minute and forget to change the content type for that song you won't display anything.

The built-in "Confidence" virtual screen doesn't work like that at all -- it has defaults. So, if you add a new song last minute you don't have to worry whether it'll display on your confidence monitor as expected or not because all "song" types are governed by a template that you set once. You don't have to go into every song, click on the "confidence" tab, and tell it how to display like you do with other non-built-in style virtual screens.

If I am able to create a "lower thirds" virtual screen, assign it a template that puts content at the bottom, assign that to a physical display that is great. But, if I have to go into every single song and make sure on the "lower thirds" tab that I using "foreground only" that a huge pain and something that will definitely be accidentally missed at some point.