Every plate currently in the layout comes in together, staggered the way the design has them.
The bottom logo bar. Independent of the plates — either can be on air on its own.
Its own browser source: dnd.tune-worx.com/host,
bottom-centre, flush to the edge — it slides straight up on IN and
back down on OUT. It shows the Host plate name from the
layout card, so you edit it there and this follows.
Its own browser source: dnd.tune-worx.com/timer.
TIMER IN brings it on and starts the count; changing the length while it
is on air restarts from the new value.
Plates stay evenly spaced whatever the count. Names you type into hidden slots are kept, so going 3 → 1 → 3 does not lose them.
All are Browser sources at 1920×1080 with transparent backgrounds — the camera feeds go underneath. Add the timer only when you want it; it sits bottom-left, clear of the logo bar.
Companion: use a Generic HTTP action with GET and one of the URLs above. They do exactly what these buttons do.