The HIFI Main Cryomagnet OPI has a couple of broken PV links where the name of the PV they are connected to has since changed, this should be fixed. ## Acceptance criteria - [ ] Coil field replaced by Persist and connects to `PERSIST:OUTPUT` pv. (The field in the advanced display should be removed). - [ ] Abort button correctly connected to `ABORT` pv. - [ ] Change the `PERSIST` and `RAMP:LEADS` to use choice buttons for clarity. - [ ] The LED display Temperature out of range currently lights up when `TEMP:INRANGE` is yes, this should be reversed, or the label should be changed.