Bookmarks brings a Maya-inspired bookmarking workflow to 3ds Max, built to help animators stay organized. Developed by rauquenrol, it lets you create visual bookmarks on entire scenes or on individual objects, giving each one a color, range, name, comment, and a linked camera.
Once your bookmarks are in place, you can use them to navigate an animation, isolate specific time ranges, move or scale keyframes, and retime.
A recent update adds control over which viewport ID the Auto Camera switch uses, so you can keep working in one view while checking camera layout animation in another. A new right-click option lets you select the camera assigned to a bookmark. Bookmarks is listed here as free; visualising or editing bookmarks requires a license, though opening scenes that already contain them does not.