How to convert DropDown field to multiSelect.

Hi,
I have existing field with type DropDown with follow definition defined in custom/modules/Accounts/Ext/Vardefs/vardefs.ext.php

$dictionary[‘Account’][‘fields’][‘account_type’][‘default’]=‘Site’;
$dictionary[‘Account’][‘fields’][‘account_type’][‘len’]=100;
$dictionary[‘Account’][‘fields’][‘account_type’][‘inline_edit’]=true;
$dictionary[‘Account’][‘fields’][‘account_type’][‘comments’]=‘The Company is of this type’;
$dictionary[‘Account’][‘fields’][‘account_type’][‘merge_filter’]=‘disabled’;

I have tried to add following line in
$dictionary[‘Account’][‘fields’][‘account_type’][‘type’]=‘multiselect’; in custom/modules/Accounts/Ext/Vardefs/vardefs.ext.php
then repair and rebuild but it not helping.

Thanks

It should be
$dictionary[’’][‘fields’][’’][‘type’] = ‘multienum’,

You should write a file at
custom/Extension/modules/Accounts/Ext/Vardefs/.php

Then do quick repair & rebuild.