Here, it explains how to induct ChatPlus in Movable Type
Copy Chat window code
(1)Log into ChatPlus and click the setting button on the upper right of the management page.
(2)Click [General setting]>[Chat window] on the left side of the screen.
(3)Copy code within the red box in the section "Chat Window".
Induction to Movable Type
(1)Log into Movable Type and select site which you want to induct ChatPlus.
(3) Click「common_bottom_js」in the section "Template・Module"
(4)Paste the code you copied at the end of HTML source, and click [Save].
(5)Check to see if the chat is displayed in the preview screen.