==Purpose==
ListenTo is a concept in {{UBIK}} Studio, that allows to connect and therefore cascade controls in an arbitrary mannnermanner. The basic idea is, that each control can have a "Master" control, meaning another control to which selection changes it is constantly listening. Also Navigation operations will be performed in the master control. This master is also referred as its the ListenTo-Sourcesource.
==Example==
Let's assume a [[Class Browser]] shall be the master control and we want an a [[Object Bulk Editor]] to always allow us to edit the instances of a currently selected object MetaClass of this Class Browser.
# Open a Class Browser in an area of {{UBIK}} Studio
# Open an Object a Bulk Editor in another area# Drag an object from the Class Browser with the left mouse button and drop it on the header of the tab where the Object Bulk Editor is in. The header text should now display a "+" sign and the text of the dropped object.