Can I use the Lost Mine of Phandelver assets on another campaign?

I have a regular D&D 5e game created and I purchased LMOP afterwards.  I assume there is a way to have those assets available to all games so you can use the monster npcs extra or am I wrong?

As a plus member and as the GM of both games (make a second game using the LMOP module if you haven't already) you can use the  character vault to transfer the characters (because you technically have control of everything as a GM) between games. Characters means anything that has a character sheet attached to it, not just PCs. Transferring anything else (e.g. maps, journals) would require the Pro level  transmogrifier .

Thanks Scott, that works.  I'm suprised I have to do one by one, you would think you could tick a bunch of checkboxes to do multiples.  Maybe in a future update.

It's sort of using an existing feature in a way that it was not designed for, there are several suggestions in the suggestion forum for improved functionality, organization, and/or features.