Using Eplanner with UVM

I am trying to implement checkers in my UVM environment from my vPlan and to map them in Eplanner. However, in the Eplanner I can only see the checks that I implemented as assertions in interfaces but not the checkers I implemented as assertions in my UVM monitor. Could anyone explain me how should I implement checkers in my UVM monitor in order to see them in Eplanner in order to be able to map them.