partial cash out of Sportsbook bets

Most other sites have a sliding bar facility,sportsbook used to have one but it disappeared about 18 months ago.in theory it’s possible to use the exchange as a cash out vehicle for most situations I suppose

Thanks Barrowboy, confirms what I thought I remembered. Wonder why they stopped it? You can use the exchange and I might, but it of course means you tie up money on both sides of the bet until it settles, so not ideal.