Help Exporting AutoMix for Use in Serato - Cannot see Cue Points with Letters on Waveform.

Good afternoon all

I'm new to DJ>Studio,

I've uploaded some MP3,s created an automix, exported it and added it into Serato.

I've loaded the first two mp3's on to deck 1 and 2 and played as normal. There does not seem to be any markings on the waveform to show letters for when to transition between tunes. Advice to activate, resolve this would be appreciated.

Thanks in advance

Duncan