hmm... you would need to store the object position in a value as a string or in 2 values as numbers.
1. create a new value in right hand values tab for the scene. rename it to something appropriate.
2. just before the display text action part, create an execute a script action part & add this line to it...
local obj = game.CurrentScene.Objects["example"].Position
Values["example"].String = ("x = " .. obj.x .. " y = " .. obj.y)
3. now inside of your display text you need to link to the value so insert this...
<vs=example></vs=example></b> into your display text somewhere.</vs=example></div>
Quick note: "example" should be replaced with the actual name you gave the value & the actual name of the object you want to store the position of into the value.