> Do I have to create separate datasets and datasources for
> each LookupCombo or there is other way to achieve this (like
> certains settings in KeyDescLinks).

TIB_LookupCombo requires separate datasets for each foreign key field.
This is because it is actually the dataset itself doing the work.

If you have many instances of this sort of thing, you may want to
consider looking at TIB_LookupEnh - available from the EnhComponents
on the registered users site. That control works differently to
TIB_LookupCombo and does permit sharing of lookup datasets.

HTH

Geoff Worboys
Telesis Computing