I duplicated a few objects with Alt+D and now I want to apply some modifiers to them, however I can't, because they are multi-user objects.

I tried U > Objects but I still can't apply the modifier.

How to make multi user objects single user?

up vote 43 down vote accepted

Press U > Objects and Data. Then apply your modifier. Using just Object will make the object a new, separate datablock for the mesh (but will ignore modifiers). However, using Object and Data will make both the objects mesh and it's modifiers a new, separate datablock.

  • Oh hey, I was about to post asking how to do this in bulk because I thought I'd tried this and had it not work for me... but now it does! The magic of searching. ... Also I think the 'object' part is only relevant for objects that are in more than once scene, since there's no way for different objects in the same scene to share a modifier stack. – StarWeaver Dec 4 '14 at 9:00
  • Why is it that when I hit the space bar and enter "make single user", select the only option in the list I only get options "Selected objects" and "all"?While pressing "u" gives "Objects and Data" as option as well and the option list has the header "Make single user". – Mike de Klerk Aug 30 '16 at 13:04

Go into Data properties, and small number button next to the data name. This will create a single user copy of the data.

Note that you have to make only the data single-user.

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You can also just use Alt+C > Mesh from Curve/Meta/Surf/Text to convert it to a mesh. This will apply the modifier for all instances of the mesh. This means you can get just one instance looking exactly how you want it, use the Alt+C command, and it will be applied to all the meshes.

  • 1
    Useful trick to know, but not very helpful if I only want to apply one modifier to one object.. – gandalf3 Dec 14 '15 at 6:38

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