Subject Usability Concerns - ComboBox and LookupCombo
Author Eric Handbury

I have a usability concern between the 2 controls. The LookupCombo
allows the user to hit 'DEL' which clears-out the field, but the
ComboBox does not.
This is confusing to the user since the user doesn't know (or care)
that the list has been generated at static-time or runtime. To the
user, both controls look the same and therefore the same functions
should apply to both.