ok first of all set a common event where ever you like

then set
@>Conditional Branch: The A button is being pressed # it can be any button.

then insert under it
@>Conditional Branch: Player is facing Down
@>Set Move Route: Player (Ignore If Can't Move)
:$> Jump: -0,+2
@>

then insert under Else
@>Conditional Branch: Player is facing Up
@>Set Move Route: Player (Ignore If Can't Move)
:$> Jump: +0.-2
@>

next insert under Else
@>Conditional Branch: Player is facing Left
@>Set Move Route: Player (Ignore If Can't Move)
:$> Jump: -2.+0
@>

You know what to do next insert under Else
@>Conditional Branch: Player is facing Right
@>Set Move Route: Player (Ignore If Can't Move)
:$> Jump: +2.+0
@>



then set at the end

@Wait For Move's Completion


then you'll end up having an event like this

@>Conditional Branch: The A button is being pressed
@>Conditional Branch: Player is facing Down
@>Set Move Route: Player (Ignore If Can't Move)
: :$> Jump: -0,+2
@>
:Else
@>Conditional Branch: Player is facing Up
@>Set Move Route: Player (Ignore If Can't Move)
: :$> Jump: +0.-2
@>
:Else
@>Conditional Branch: Player is facing Left
@>Set Move Route: Player (Ignore If Can't Move)
: :$> Jump: -2.+0
@>
:Else
@>Conditional Branch: Player is facing Right
@>Set Move Route: Player (Ignore If Can't Move)
: :$> Jump: +2.+0
@>
: Branch End
@>
: Branch End
@>
: Branch End
@>
: Else
@>
: Branch End
@>

@Wait For Move's Completion
@>



then name it what ever you want and set the Trigger: Parallel
and select a condition switch

then set an auto event on the map to switch to the condition switch you've selected then when you play it just press the Z button or what ever you selected and the actor will jump.

Edit: Ok like everyone was saying use the command "erase event" or a self switch to stop the process of the map event