Cascading TableControls

Well, changing the background colour will result in the selected record being highlighted .

What should be highlighted. The current row as in this screenshot is colored green:
Screenshot_20220726_123643

See my modified attachment for an alternative approach to clarify the functionality. https://ask.libreoffice.org/uploads/short-url/bLlHkFznG0S7ZBV5sw2snFzkIAi.odb

Yes, but the highlight goes away when clicking on “Nigeria”. Highlighting would be a way for the user to see his/her selection path.

Yes Villeroy. When I click in your middle TableControl “NZL Christchurch” and then in the right on a participant the record in the middle control stays highlighted as well as the participant. But I can not see how you achieved this.

Did you notic the extra caption above the dependent table controls?
Bildschirmfoto von 2022-07-26 13-24-43

(“Countries of selected country” should be “Cities of selected countries” of course")

Villeroy this seems a way forward. I put a textBox above the tableControl and it works as demonstrated. Thank you.
Other suggestions still welcome.