Hi ziyalogy,
You need to add the Autoplay time number here:
Also, you can add the following string to the \language\en-GB\en-GB.mod_ja_acm.ini file
; Hero -cto
HERO_BASIC_2_LABEL = "General settings"
HERO_BASIC_2_DESC = ""
HERO_IMG_DECOR_TITLE = "Background image"
HERO_IMG_DECOR_TITLE_DESC = "Background image"
HERO_SUB_HEADING_LABEL = "Sub heading"
HERO_SUB_HEADING_DESC = "Sub heading"
HERO_HEADING_LABEL = "Hero heading"
HERO_HEADING_DESC = "Hero heading"
HERO_INTRO_LABEL = "Hero description"
HERO_INTRO_DESC = "Hero description"
HERO_CONTENT_ALIGNMENT_LABEL= "Content alignment"
HERO_CONTENT_ALIGNMENT_DESC = "Content alignment"
HERO_BUTTON_1_LABEL = "Button 1 label"
HERO_BUTTON_1_DESC = "Add label for the button"
HERO_BUTTON_1_LINK_LABEL = "Button 1 link"
HERO_BUTTON_1_LINK_DESC = "Add link for the button"
HERO_BUTTON_1_TYPE_LABEL = "Button 1 style"
HERO_BUTTON_1_TYPE_DESC = "Select style for the button"
HERO_BUTTON_2_LABEL = "Button 2 label"
HERO_BUTTON_2_DESC = "Add label for the button"
HERO_BUTTON_2_LINK_LABEL = "Button 2 link"
HERO_BUTTON_2_LINK_DESC = "Add link for the button"
HERO_BUTTON_2_TYPE_LABEL = "Button 2 stype"
HERO_BUTTON_2_TYPE_DESC = "Select style for the button"
HERO_BASIC_1_LABEL = "General settings"
HERO_BASIC_DESC = ""
HERO_AUTOPLAY_TITLE = "Autoplay"
HERO_AUTOPLAY_DESC = "Select yes to enable autoplay"
HERO_MASK_TITLE = "Mask style"
HERO_MASK_DESC = "Configure the mask of the module"
HERO_AUTOPLAY_TIME_TITLE = "Slide duration"
HERO_AUTOPLAY_TIME_DESC = "Set the auto play duration"
HERO_DESC_LABEL = "Description"
HERO_DESC_DESC = "Add section description"
HERO_MEDIA_LABEL = "Image"
HERO_MEDIA_DESC = "Add section image"
HERO_MEDIA_ALIGNMENT_LABEL = "Media alignment"
HERO_MEDIA_ALIGNMENT_DESC = "Configure Media alignment"
HERO_BUTTON = "Button label"
HERO_BUTTON_DESC = "Add Button label"
HERO_BUTTON_LINK = "Button link"
HERO_BUTTON_LINK_DESC = "Button link"
HERO_BUTTON_TYPE = "Button style"
HERO_BUTTON_TYPE_DESC = "Select button style"
HERO_TITLE = "Title"
HERO_TITLE_DESC = "Add hero title"
HERO_DESCRIPTIONS = "Description"
HERO_DESCRIPTIONS_DESC = "Add hero description"