KBLink (subclass of KBLinkTree)

Parent field (master)

Field in parent query used to link to child field in the associated query

Child field (child)

Field in the associated query used to link to parent expression

Morph control (morph)

If morphing is enabled, then the control is drawn as a simple text value when it does not have focous. This can be used to remove the dropdown on Choice and Link controls.

Show columns (showcols)

This sets the number of columns to show. If the Display Expression setting specifies more than one column, then this property gives the number of columns to show when the combobox drop-down is not on view.