Hi,
Easy Profile extends Joomla user management (not replace), so all plugins that works in Joomla user profile page will works also for Easy Profile, unfortunately these plugins (like DPcalendar extra data) are not manageable with Easy Profile.

Anyway with a simple template you can solve it, please try to follow these steps:
- copy file from /components/com_jsn/views/profile/tmpl/default_fields.php to /templates/your-theme-folder/html/com_jsn/profile/default_fields.php
- open new file and add at line 24 this code:

if (JFactory::getUser()->id != $this->data->id && isset($fieldsets['dpcalendar'])) unset($fieldsets['dpcalendar']);

With this you can see dpcalendar fields only if the user see own profile page.

Thanks very much,
This suggestion works perfect.

Now I want to try and also 'hide' the 'dpcalendar' item for each users 'edit profile'-page.

Which file do I then need to adjust in a comparable manner?

Hi,
sorry for late reply, unfortunately this is something regards dpcalendar, the edit profile page is the same of Joomla (with Easy Profile improvements), so you need to edit a dpcalendar core file:
- Open file /plugins/system/dpcalendar/dpcalendar.php
- Comment (or delete) function "onContentPrepareForm" (from line 200 to line 211)

NOTES
1) You need to add this modification when you upgrade or reinstall dpcalendar because plugins are not overridable like output files
2) With this modification you does not need anymore the previous override, the tab will be automatically removed also in profile page
3) the lines number are from the free version of dpcalendar, probably are the same also in paid version but unfortunately I don't know
4) I don't know if this modification create some expected behavior, I think not but is a better way to contact dpcalendar support

Thanks for your answer.

At this moment I am consulting with the creator of DPCalendar in order to get the same result as you decsribe, but then within the confinements of the plugin.

Thanks for your help, your contribution worked...

@Burnardo
Did you get any solution from the developer of DPCalendar?

No none at alll......

(sorry to say)