Select Block
This block defines a pull-down menu where users select one value for this input parameter from a list of values that you define. Select fields have these properties:
Name = this is the internal property name for this parameter that appears in wiring and in the published topics for this form.
Title = the label in the form for this field.
Description = helpful hints to users about this field.
An Options section where you define the values that users can choose. Each option has a label and a value property. Once you enter an option, another empty pair of fields opens. Complete the options and then save the block.
Label = the label that users see and select for one option.
Value = the actual value that should be assigned to this input parameter if users select this option.