I do NOT want to lay at the back price or the lay price. I do NOT want to just change the price of one selection to create a margin. I want to change all the prices in one go. I thought that was what a bookmaking function was for I can set all the prices according to my chosen margin. I do not want to have to go through changing every selection manually as I presume the software was here to do this for me.
So for example I want to lay all the selections at 30% less than the current back price.
How do I do this? I can't find a function for it and it's a really simple function??
