If you only need to animate their visibility identically, there's a very simple solution: By default "inherit visibility" flag is set on objects, you can simply link all objects to one object and animate the visibility of that one object. Might not work as expected when exported to a game engine, though. An alternative is…
If you are using a recent version of Max, 2016+EXT or 2017, you can use Animation Presets. http://help.autodesk.com/view/3DSMAX/2017/ENU/?guid=GUID-308209EF-063B-4117-975F-75B9CCD2BC25 Note: I had a long pause of about 15 seconds after applying the preset. I edited that out of the GIF to keep the file size down.
Hello, I would like to ask You how can I fast animate visiblity of multiple objects in 3ds max. Let's say that I have 1000 objects and 200 frames. I want every object to slowly appear (let's say each object should go from 0 visibility to full in 20 frames) in these 200 frames. For example, one object should start at 50…