I have CrazyTalk Animator Pro, and I cannot figure out how to add custom props into the Content Manager window. The "Add" button (the Plus sign at the bottom of the Content Manager window) is greyed out, so I can't seem to upload my prop image (my .png image) through there. Another thing I tried was to click the upside down triangle at the upper right side of the Content Manager window (it's beside the "Template" and "Custom" tabs) and clicked "Find File" to open up the "Custom Props" folder. I dropped the .png file I want into there, but it still does not show up in the Custom Props folder in the Content Manager window. How do I get my props into the "Custom Props" folder? (or ANY folder that will allow me to add my .png file as a prop when using Character Composer to try and add the prop to my character's hand) Thank you.