Reply to help with led mapping

Hi ive already posted about this once but was in the wrong section.

Basically I want to have lights flash to the bpm of songs on each deck, I have 4 cue point buttons for each deck.
I want the buttons to stay lit up when the song isnt playing just so I know where they are then when I hit play for the buttons to flash to the beat, I dont use master clock just use deck syncs when I cant be botherd to beat match and was wondering if anyone could give a step by step for this

Ive read some tutorials on mapping led's and couldnt figure out the mapping bpm bit, its the last bit im missing for my mapping Thanks in advance,

Steven.