(1) Subject to subsection (4) , an easement or profit à prendre which is recorded in the Register may be released wholly or partly by the person having the benefit of that easement or profit à prendre by an instrument in an approved form and registered under this Act.(2) Subject to subsection (4) , the Recorder, upon the application of a person having an estate or interest in land affected by an easement or profit à prendre , or of the Recorders own motion, may cancel the registration of the easement or profit à prendre , in whole or in part, where it appears to the Recorders satisfaction that (a) the period of time for which it was intended to subsist has expired;(b) the event upon which it was intended to determine has occurred; or(c) it has been abandoned.(3) In considering whether an easement or profit à prendre has been abandoned, the Recorder, if satisfied on evidence that the easement or profit à prendre has not been used for a period of at least 20 years, is to treat that failure to use as conclusive evidence that the easement or profit à prendre has been abandoned.(4) This section has effect notwithstanding sections 28(14) , 40(3)(e)(ia) and 151(1)(e) .