Here, it explains how to induct ChatPlus in Movable Type
Installation of ChatPlus (Installation of original JavaScript) can be done above Minimum Plan, and Movable plan can be done from Standard plan. Specification of Movable Type can vary, and the procedure of installation can be changed. Please be mindful of that.
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.
(2)Click [Design]>[Template]
(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.