I got excited with this feature so added all my print, Kindle and pdf books, which I didn't have in logos.
Then I bought a couple of libraries and found 14 books I had added which I now owned in Logos.
There seems to be no quick way to remove them from my Print Library.
I filtered my library by books on my device in Print Library to find them, but had to type each title into a second library window under the Print Library tab.
This will become a bigger problem in future when more libraries are added.
Is there a quicker way to do this?