If you've already been feeding her live on a regular schedule, for the next feeding I would switch to pre-killed with tongs (get her used to feeding with tongs). If she takes that, then the next feeding, try f/t with her. Get a scale and keep track of her weight and when she feeds or doesnt feed and attempt to feed her once a week. Unless it is losing weight, keep trying f/t. She'll take it eventually. Sometimes it will take f/t its first time, sometimes it wont take it for a few months. As long as her weight stays healthy, its up to you how you want to transition her to f/t. Patience is key.

If she starts losing significant weight, get her back on a few feedings of p/k or live, then try it all again.