@SELECT pagetitle,pagetitle FROM modx_site_content WHERE parent = **
Create your TV as type DropDown List Menu
In the Input Option Values filed add =>
@SELECT pagetitle,pagetitle FROM modx_site_content WHERE parent = **
Where ** is the id of the container/parent document
Ben,
That’s because when you select the value for the TV it is stored in the DB table for the TV, so any changes you make later to the original source of the content won’t change the stored value for that TV.