I'm using Indesign CC 2015, and I've lost the colored dots on the right side of the layer list, so I can't drag items between layers any more. I've updated to the latest version, restarted etc and they are still not there. Interestingly they are there on my macbook, but not on my imac, so I'm wondering if I have accidentally changed a setting without realizing it. Can anyone advise on how to get these 'dots' back? It's driving me crazy having to copy and paste all the time.
thanks