To sort the columns, you need to click on the column header.
Example: By clicking on Name, your guest list will be sorted alphabetically.
When a sort is active, the icon 
appears next to the column name.
To filter the columns, you need to click on the icon
next to the column you want to filter.
All the values present in your participants' responses will appear, and you can select the ones that suit you.
Example: When I click on the filter, a window opens with the existing responses on the platform.
When a filter is active, this icon appears 
next to the column.
Note: To remove the sorting and filters, refresh your screen or click on the "Participants" tab.