Please make it easier to jump back and forth between files
I am a long term user, from before it was called OneDrive, and in fact before it was available to the public. Love it! Usually.
I often have a need to read multiple PDF files together, and flip back and forth. I put them in the same folder, so it's easy to exit one, and open the other. But, when I do, you lose my spot! How about saving that state information, and keeping the file open to the same viewport? At least if it's opened within a few minutes? The PDF reader has improved, but jumping a couple hundred pages down a legal filing is still painfully slow, and I have to do it, a lot.
-Daniel Wigdor (formerly of MSR)