Change display value depending selected count

Hi there !
First, thanks for the awesome plugin.

Here's what i try to achieve :
- change the display value (attribute `data-name`) depending the filter count
- for example, if more than 3 selected items, use attribute `data-short-name`

I was able to do this with the PHP side, means it work on refresh as i count the number of selected items. But I want to make it work on select, the JS way.

Maybe I can use #25 as inspiration ?

In the end, changing on the fly NiceSelect settings to use another attribute, or be able to change `data-name` value and refresh NiceSelect ?
Thanks a lot