How do I label a filtered essentia tube?

[HojoCat]

Now that I've found a use for them I can't figure out how to put a label on one.
I've tried both mouse buttons and sneak clicked both mouse buttons.
I've tried on empty tubes and I've tried on tubes with flowing essentia.
Has anyone figured this out?

Edit: Thaumcraft 4, Monster modpack

 

[Feniks]

Yes it is bit tricky you have get yourself phial of essentia that you want your filtered tube to be labelled with and blank jar label. Then you put this phial of essentia and jar label in crafting table which will give you jar label for this kind of essentia and then you slap it on tube and it is done.

At 6:00 I explain exactly what to do

 

[HojoCat]

Thanks you saved me from losing my mind!

 

[Feniks]

Thanks you saved me from losing my mind!

No problem glad I could help I was confused by it as well on the begining. Feel free to hit like button under a vido it helps a lot.