How to toggle render visibility for all objects in Outliner?

I have just made a huge hangar bay set for my current animation project, and for some reason over half the objects have defaulted to being invisible to the renderer (greyed out camera icon). This presents a problem, as I have a huge amount of objects in the scene and I don’t want to have to scroll through and toggle all of them one by one. Is there some menu button or keyboard shortcut that can toggle “all active” or something?

Doesn’t Alt-H (= unhide all, with the mouse cursor hovering over the viewport) do the trick?

No, they’re not hidden in the viewport, that’s the thing. I can see them just fine in the viewport, but when I go to render, they vanish unless I go one by one toggling render visibility in the Outliner.

Select all and hit Ctrl-Alt-H, then (again, with the mouse cursor hovering over the viewport).

Sorry, forum hiccup.

Sorry, forum hiccup.

Sorry, forum hiccup.

This worked! Thanks!

Also, with click and drag you can toggle a bunch at the same time in the outliner. Click and drag works real good in Blender.

also
ctrl+click on the parent visibility icon (children must be selectable - arrow icon on)

Also, with all the objects selected, Alt-Lclick the render icon in outliner.