How to prevent free text in List Collector in workspace

[Florian Korbmac]

We have a workspace where we display a record from a table on a page. An entry is a list collector. However, a user can also enter free text there. Can I switch this off in the workspace? Is there perhaps a property for this?

[Mark Manders]

How is your list collector configured? What is it referencing to? 

[Florian Korbmac]

It is referencing to the user table (sys_user). But in the workspace you can add an email-address.