Combobox with multi selection feature

[startvsem_ru]

The site has a form where there is a combobox. It has multiple choices set up, but when sending a message, only one option is received, although several were selected. How to fix it

[Pablo]

Did you use brackets in the name as documented in the help?

[startvsem_ru]

You can link

[Pablo]

You can access the help via the 'Help' menu in the application.

[startvsem_ru]

I didn't find anything in the help. Can you help

[Pablo]

This is from the help:

Note:
It's important to note that the element name must be in the form name[] for multiple selects! This way you'll receive the selected values in an array (this is a PHP feature).