objects on the chart

[hamidrzz]

hi friends.
In my chart i have rectangle and i want to find the lower and upper price of the rectangle.
then i make variable and choose the modify variables block and choose object on the charts.
but i don't know what should i choose in property part to show me the lower and upper price of the rectangle.
if any one know please help.

[jstap]

Good question but is there, have you named the object?

[hamidrzz]

@jstap yes it has a name on meta trader

[jstap]

In a comment put the levels then check with your crosshair.