How to show several selected items in caption

[#1]

Hi ,

I have a pivot table named like the value selected in a list box , I simply wrote '=field_in_listbox' in the box 'Window title'.

But when I choose more than one value the title just shows '-'.

How could I make it to show all the selected values separated by comma for example?

Thanks.

[Gysbert_Wassenaar · Accepted solution]

=concat(distinct [field_in_listbox], ', ')