Batch redirect files in UE4?

Hello - I have two questions really that fall under the same umbrella.

  1. I had an old master material (and instanced) hundreds of materials using these material instances - since then, I’ve upgraded my master material and am wondering if there is a quick way to redirect all of these old material instances to use the new master material?

  2. I’ve installed and moved my entire project folders from my desktop to a portable ssd - However, when hovering over my imported assets (That still show up fine) - the source directly points back to what it was on my desktop – Is there a way to batch redirect these files to their new proper locations?

Any help and steps regarding this matter is hugely appreciated!