An extension layers extra values on top of another graphic that's already on air. That graphic is called its base. A common example is an extra time tab that adds to the scorebug, without taking the scorebug off and bringing it back.
[VIDEO PLACEHOLDER: Control_Room_11_Graphic_Extensions_v2.0.mp4]
Before you start
Both graphics are in your Control Room: the base (for example Scorebug) and the graphic you want to use as its extension (for example Scorebug Extra Time). See Add a graphic.
The extension graphic is built in your theme to work with that base. Which graphics can extend which depends on how your theme's graphics were designed.
What an extension does
Normally, every graphic you put on air is independent. It comes in on its own and goes out on its own. An extension is different:
It belongs to a base graphic, and only makes sense while that base is on air.
When you put it on air, it updates the base graphic and only sends its extra values. The base stays on screen the whole time.
On screen, the extra part joins the base that's already there. For example, the extra time tab appears alongside the scorebug.
This keeps your main graphics clean. You don't need a second, separate scorebug just for extra time, and the operator doesn't need to swap one scorebug for another mid-match.
It can help to keep the base and its extensions together in one section, for example SCOREBUG + EXTENSIONS, so the operator sees them side by side.
Make a graphic an extension
Click the three dots on the graphic you want as the extension, for example Scorebug Extra Time, and click Edit.
On the Details tab, tick Is Extension. A base graphic field appears.
Open the base dropdown and pick its base graphic, for example Scorebug.
Click Update Graphic to save.
The graphic is now linked to its base. Its name, section and other details work as normal.
Put an extension on air
Put the base graphic on air first. For the scorebug, click Scorebug In or GFX IN on the scorebug row.
With the base on air, click GFX IN on the extension.
The extension's name appears as its own chip in the bar at the top of the Graphics panel, next to the base.
Check the output. The extra values, such as the extra time tab, have joined the scorebug that's already there.
When you no longer need it, click GFX OUT on the extension, or the cross on its chip. The base stays on air.
Tips and common mistakes
Base first. An extension adds to its base. If the base isn't on air, there's nothing for it to add to.
Pick the right base. If the extra values don't appear where you expect, edit the extension and check the base graphic it's linked to.
Preview it. Use Preview to see how the extension looks with its base before match day.
Taking everything off. Taking all graphics off at once clears the base and its extensions together. See Take graphics off air.
Next: Put a graphic on air