I decided to create this topic to collect useful information, questions and solutions.

First I will discuss my problem. 
I need to show/hide this cannon holder, for my TT Knight.



Until wardrobe, I used these commands. This works fine for non-wardrobed models.
[KEY]
<STRING>NAME:HIDE MATERIAL
<FLOAT>FRAME:10
<STRING>LAYOUT:holder
[KEY]
<STRING>NAME:SHOW MATERIAL
<FLOAT>FRAME:15
<STRING>LAYOUT:holder
[/KEY]
But it does not work with wardrobe.  (may be necessary to use other names or structure)
I decided to use another method - Particles.
Now I can summon this Holder-Particle when changing weapons, but how to remove it when changing animation?

Earlier, I wanted to use a  Particle duration = Animation duration. Like this:
[KEY]
<STRING>NAME:SPAWNPARTICLE_STOP_ON_DEATH
<FLOAT>FRAME:0
<STRING>LAYOUT:media\particles\ttk\c_holder.layout
<STRING>BONE:Bip01 L Hand
[BONEOFFSET]
<FLOAT>X:0
<FLOAT>Y:0
<FLOAT>Z:0
[/BONEOFFSET]
[/KEY]

But today
I found this command:

<STRING>NAME:REMOVEANIMATIONPARTICLES
but have not tried it yet.  Would it work?

But it does not work with wardrobe. 

Damn, checked again - this works fine! 



Looks like I made a mistake somewhere before. Hooray - it solves all my problems!  Now I can make a variety of death - the explosions with disappearing parts!

In any case, we can always continue experimenting with E-gauntlets. 

Hey Vkoslak. If you will have any questions, I am ready to help. I have some experience with models, wardrobe, etc.