When a player comes close to the end block(200 units), plugin started showing messages about how much is left to the end of the block each frame (i.e. when you doing prestrafe you can see when you must prees jump button to do good jumpoff, like a kz comand /speed)
Player cmd:
say /jof - enabled/disabled showing Jumpoff
Cvars:
jof_type <1 or 0> - 0=jumpoff show only when player press jump button, 1=jumpoff show since 200 units