Hi, you can do it with [subformFieldId].[fieldId]. Eg, my subform field is "details" and the field is "type", I can use "details.type" for control field.

Hi Friend,  in my case the subform id is = hr_expense_new   and the radio tool ID is = modalidad_pago

as you can see in the images

i did use hr_expense_new.modalidad_pago  and don't work ,is this example as you did  explain?

Radio Control (inside the subform)

subform ID 

SECTION Visibility Control Rule

Hi Friend, in my case the subform id is = hr_expense_new and the radio tool ID is = modalidad_pago as you can see in the images i did use hr_expense_new.modalidad_pago and don't work ,is this example as you did explain?

Hi, in the first pic you posted. Look like your field is in a subform of a subform? in this case, you may need to try syntax like subform1.subform2.field1.

Sorry but don´t work do you can share an example or app with this case?

      Definitivally to use this feature the control must be in the same form friends ¡ Good Look¡