wp date range :

Add start date and end date to posts
https://wordpress.org/plugins/wp-date-range/

wp manage order :

Ordering content by drag/drop
https://wordpress.org/plugins/wp-manage-order/

wp custom lists :

Create lists
https://wordpress.org/plugins/wp-custom-lists/

wp custom setting :

Replaces contents ID by keys
https://wordpress.org/plugins/wp-custom-setting/

wp sidebar :

Manage sidebar by page
(More infos, contact me)

wp front end post :

Add content from the front-end (including inserting images)
(More infos, contact me)

wp custom profile builder :

Create users from front-end and activate new accounts from backend
(More infos, contact me)

wp custom alo easymail :

Add simple form for newsletter
(More infos, contact me)