Dissolving/Dissapearing post process that works on meshes/creative props

I am in the process of trying to make buildings and some props fade away, or dissapear/dissolve from the bottom up. The best way ive seen this done is with a post process volume. im not sure how to go about making this, as there is some great tutorials on ue5 on how to make what i need. however, they are using nodes in the materials that arent accessible in uefn. any help would be appreciated!

if it helps, i saw someone make EXACTLY what i wish to make on twitter. heres the link to it. thanks in advance yall!

Lilith | Queen of nodes on Twitter: “New hologram tech IO made or however the lore goes #UEFN https://t.co/AigtKaEWiX” / Twitter