I'm trying to put a slide show together with a soundtrack. I've looked at the tutorials, but my Add button is greyed out as can be seen from the photo. I've looked at preferences and all of menu options, but can't find a way to enable it. I'm possibly missing something very obvious, but it's eluding me at present!
Has anyone got any recommendations please how to rectify this issue?
I'm at latest version 6.3 of standalone running on an iMac with OS 10.9.5