Defining the options for dropdowns

The values of the dropdowns itself are defined in the project settings, to be able to reuse the same drop down definitions is several fields.

Adding dropdowns to item categories

Dropdown fields can be added to any category using the admin client

The drop down has the following options

readonly control: If checked the value of the control cannot be modified
require content: if checked a value needs to be selected to be able to save the item
do not print in reports: if checked the selected value(s) will not be shown in REPORTs
do not print in documents: if checked the selected value(s) will not be shown in DOCs
maximum number of selected items: defines how many items can be selected
allow creating items: whether the user can type some text instead of selecting values
sort drop-down options: whether the options should be sorted or take as defined
Dropdown Options: This allows you to select a predefined drop down to use it in a category fields. You can also define the project setting with the values of the drop down via the "manage".