Add a set of Cases to your button to test which radio button is selected
IF is selected of + amount 1 equals “true” Set PreferenceAmount to text on + amount 1
IF is selected of + amount 2 equals “true” Set PreferenceAmount to text on + amount 2
IF is selected of + amount 3 equals “true” Set PreferenceAmount to text on + amount 3
Or, as I show in the attached example, set the global variable, PreferenceAmount from each radio button when it gets selected, for example, the Selected event of + amount 1 would have:
Set Variable Value PreferenceAmount to text on This
(then copy & paste that to each radio button)
The Save button would then just need to open Page 2.
See this updated file, where I duplicated your pages to Page 1 (1) and Page 2 (1) radioBtn_passData.rp (82.6 KB)