Required fields on Matrix

Hi there

I am working on this form which is for people to sign up to five sessions:

http://form.jotformpro.com/form/51051924745959

I realise (or at least I think it's unlikely) to come up with any validation that prevents people picking more than one session in the same time period (by accident).

However, what would be good, is if it could only allow you to select five rows. At the moment the current validation is 'at least one row', but looking at the generic options, it seems to be all or nothing (all rows).

Any advice would be appreciated.

Thanks

Rich

Unfortunately that is not possible. Considering that matrix has multiple options for what can make a matrix required:

like you said is 'it seems to be all or nothing (all rows)'. Instead of using radio buttons you can set your fields to be check boxes. That will enable user to uncheck option that is checked by mistake. 

Hope this will help. Let us know if you need further assistance.