Relocation more than one image

Hi,

a few weeks ago I moved my original images, which where on an external USB drive, toi the internbal disk of my iMac. After that I relocated the top level directory in the C1 library tool and everything seemed fine.

Today I noticed, that some images are still shown as offline, but the folder they are in is not shown as offline in the library tool. I can "find" single images, but as there are several hundred that would take some time. I tried selecting several images and "finding" them, but this seems to work only for thw first selected image.

Is there any why I can "find" all images at once?

And second question: Is there any way to find the offline images in my catalogue, there seems no way to select them in a smart album...

Thanks for your help!

Alex