The plugin was written using the AJAX technology what means all the actions will be native and will not require reloading the page, while using the plugin.
From the main improvements we should note the followings:
List of dialogs – The dialogs are sorted according to their dates when the popup is opened, so you will be able easily find the last dialogs at the beginning of list. The new messages are marked with sticker “New” and displayed first in the list of messages. The new sent messages are automatically added to the list of dialogs. Also it’s possible to delete the unnecessary dialogs directly from the pop-up.
Writing messages – Convenient autocomplete when choosing the recipients. More convenient message composing field with an ability to send additional files. Sending messages by pressing Enter. Ability to send messages to several users at once. The information about members who are dialoguing is displayed over the dialogue. Additionally, Admin may configure the plugin according to the members level settings.