Hi,

1) This works partially.
Profile Page: Unfortunately Acymailing add custom fields with a System Plugin (instead User Plugin), this is not a great way, so this will no works.

Registration/Edit Profile Pages: Here you can add Acymailing custom fields, only 1 note: Acymailing allow you to add custom fields in following positions:
1. Password
this works without problem
2. Email
this nor works because Easy Profile as default settings remove Confirm Email field. You can re-enable confirm email from Easy Profile options.
If you do not want a "confirm email" but want to show Acymailing custom field after email you can use "Custom" and set as field "jform[email1]" (see screenshots)
3. Custom (Very useful)
you can add Acymailing fields after each Easy Profile fields, you need to specify field with "jform[alias_of_field]"

The same for Newsletter lists in registration/edit profile pages

2) This is something related to Acymailing, we can't do something like this. About Export: we plan to add Export User List feature in next release. You will can export users from frontend users list.

Still,

In the settings of a custom Easy Profile field, there could be an option to select a (previously configured) ACYmailing custom field. If a field is selected, this Easy Profile field will automaticly populate the ACYmailing field.

You already can do this by developing a simple plugin:
- Download, Install and Enable Skeleton Plugin (you will find it at http://docs.easy-profile.com/index.php/article/triggers)
- Open file /plugins/jsn/skeleton/skeleton.php
- remove samples functions: triggerFieldAvatarUpdate, triggerProfileUpdate
- add function like this:

public function triggerProfileUpdate($user, &$data, $changed, $isNew)

	{

                if( in_array('alias_of_field' , $changed  ) ) {

                    $db = JFactory::getDbo();

                    $query = /* QUERY TO UPDATE ACY FIELD FROM VAR $data['alias_of_field'] */ ;

                    $db->setQuery($query)->execute();

                }

	}

docs about our triggers at http://docs.easy-profile.com/index.php/article/triggers

NOTE: This code is not tested and not supported, this is only for example purpose. You need to have a minimum of PHP and Joomla Dev knowledges

3. Custom (Very useful)
you can add Acymailing fields after each Easy Profile fields, you need to specify field with "jform[alias_of_field]"

Where can I find this setting. Is it in Easy Profile or in ACYmailing? Or is it related to a plugin?


Thanks again

Acymailing add fields with a system plugin called "AcyMailing : (auto)Subscribe during Joomla registration". You can find this plugin in Joomla plugin manager

Thank you