Modify the layout of quick replies

How to extend/ modify quick reply class to change the layout of quick replies. For example instead of displaying horizontal scrollbar, can it be displayed as vertical list.

Please suggest

Hi Poonam,

There is no provision to modify the pre-defined templates. Instead, you can create a custom template.
Please refer the following post for steps to create a custom template:

Let us know if you need any further clarification.

Yoga Ramya