Setting a Custom NBT Tag on a Placed Block?

[micc]

So far I've tried the following code:

on place of furnace:
    add "{BurnTime:32767}" to nbt of event-block
    add "{SomeCustomNBTTag:0}" to nbt of event-block

The BurnTime is added to the event-block, but not the SomeCustomNBTTag

So my question is, Is it possible to add custom (non-vanilla used) nbt tags on blocks? And if so, how?

 

[Mr_Simba]

It's not possible, blocks don't support custom NBT tags. You can use metadata but that's temporary and will be cleared upon server restart.