Default Value for Radio Button field

[VPCHC]

I have a radio button field on a submission form that uses a lookup table for its data source.  I want one of the values in the table to become the default value for that field.  According to Caspio's Help (https://howto.caspio.com/datapages/datapage-components/setting-up-default-values/) I should be able to use the Advanced tab to Receive a  Value or Parameter on load.  However, the only choices that are offered are: External Parameters or System Parameters.  The Default Value choice is not presented.  I have attached screen shots of the field configuration screens.  Can someone explain why the Default Value choice is not available?  I should mention that we are testing Caspio using the Free plan before we upgrade to one of the other paid plans, if that makes a difference here.

Caspio Forum Default Values.docx

[ParkLoey]

Hi @VPCHC! I tried this on my end too and looks like the default value option is not available  here's what I used instead. I used both for source, added a value I want to set as default, then clicked the check mark to set it as the temporary default value.

I hope this somehow helps! 

- LOEY