Choosers and designers are used at various points while designing a Formever system.
Choosers allow you to pick from a variable number of items. The list is variable because it changes depending on where the chooser is being used. For example:
Field chooser is used to select fields in a text block. Depending on the Master Form type the accessible fields varies.
Designers allow you to set various attributes of an item. For example the Note Field designer provides settings for field size, color, font family and other attributes. The Master Form designer creates and edits the master forms used to capture data for your system.