help use the print_membergroup_row on forum options

[Asterix_ita]

Hi guys,

I wanted to use print_membergroup_row in the options forum

I created one plugin

Product: My addon
Hook location: forumadmin_edit_form
Title: my plugin forum
Execution order: 5
Plugin php code:
print_membergroup_row($vbphrase[‘mylabelphrase’], 'forum[cts_reportgr]', 2, $forum['cts_reportgr']);

with this plugin I get the list of groups with checkbox, but I can not save selections and when I get back in the option forums are all unchecked

If I used this plugin

Product: My addon
Hook location: forumadmin_edit_form
Title: my plugin forum
Execution order: 5
Plugin php code:
print_input_row ($vbphrase[‘mylabelphrase’], 'forum[cts_reportgr]', $forum['cts_reportgr']);

the entered values are saved.

I know it should be a trivial thing, but until now I never used print_membergroup_row and then of course I miss the code.

Thank you for your help