I’m not one of the plugin developers, but I have been doing some intensive customization work with this plugin over the past week and have learned a lot about how to use it.
I think you could accomplish this if you create custom templates in your theme for the following files:
buddypress/group-events.php (this is the events tab on the group page)
modify the template so it checks if the current user is a member of the current group and only get any results if they are
templates/events-list.php, (this is the main events list)
modify the template to include $args[‘group’] = ‘my’
templates/events-search.php (this is the search form above the main list)
include a hidden field in the form: <input type=”hidden” name=”group” value=”my” />
`
See http://wp-events-plugin.com/documentation/using-template-files/ for info about creating custom templates.
HTH 🙂
@jazbek has a point, you can use template files and supply event attributes which you can found on the site tutorial http://wp-events-plugin.com/documentation/event-search-attributes/