[TYPO3-seminars] use checkboxes field as radiobutton or select listbox

[David Denicolo]

Hi all,
I find a way to use the "checkboxes" field as radiobutton or listbox 
(select) but it doesn't send values

Just put this in your typoscript:

plugin.tx_seminars_pi1.form.registration.step1.elements.checkboxes = 
renderlet:RADIOBUTTON

or

plugin.tx_seminars_pi1.form.registration.step1.elements.checkboxes = 
renderlet:LISTBOX


But in emails there is only a void value :(

any idea?
best regards
David