Lost content list.

Hello - Whilst trying to sort out DAZ3D problems I seem to have created another. I've inadvertantly 'clicked' in the wrong place and my content library has disappeared. Try as I might I have been unable to restore it to the original lists etc. Would someone be kind enough to help me sort this out please.
Thank you - Have a nice day.
Comments
Sorry, I forgor to attach the example.
You've closed one of the subtab sections (much too easy to do without noticing). Look more closely at the thin blank spaces between the sections, and you'll see even thinner dark lines. Click on the one just above "None" in the middle of your Content Library tab, and you should get the missing section back.
Do you absolutely need the tickbox section at the top or the Tags section at the bottom? If not, you can close these as well and have more room for showing content.