Selecting option in excell type coro


How can I manually select an option in a cell of type coro? The setValue function of the cell works but the value is also added as a new option thus, having double options in the combobox.

I hope you could help with this. Thank you!

If you are using setValue with the same value as existing one - it will result in selection of existing option. New one, will be added only if you are using not existing value.
Be sure that
- you are using value, not label, as parameter of setValue
- the value is exactly the same as existing one ( whitespace and newlines in configuration XML - are matter )