Hello.
If I have some radio button options like "June 13th, 13:00" and "June 13th, 14:00" how can I restrict the options to accept only up to 10 people per each option? Is there a way to do this?

Hello,

This can be achieved in multiple ways, but it will require custom scripting. One option would be to limit the submissions similar to how it is described in this article:
www.rsjoomla.com/support/documentation/r...for-submissions.html

... instead of username or IP you will need to count the number of submissions made with a particular value. You can then stop the submission by triggering a validation error as described here:
www.rsjoomla.com/support/documentation/r...ted/php-scripts.html

Another option would be to generate the items of your radio using a custom script, similar to the one provided here:
www.rsjoomla.com/support/documentation/r...st-from-a-table.html

In your script you could first check the number of submissions made for each option, then if the limit is exceeded disable a particular option by adding "[d]" to the option, as mentioned here:
www.rsjoomla.com/support/documentation/r...lds/radio-group.html