@sujan.cybermak, The "View More " options appears to the user at the buttons of List Template based on the length of elements array.
We limited it to display a max of 3 elements by default and to show the “View More” options if the elements are more than 3.
This template at “Talk to bot” cannot be altered as this is the webSDK which we have hosted on the bot builder.
However, if you are using the webSDK channel and have either hosted it somewhere or even running locally, updated the logic based on you requirement at chatwindow.js file of webSDK.
Below code snippet is for your reference at chatwindow.js file of webSDK .
Alternatively, you could even create a custom template for webSDK to present rich interactive messages to user . Refer to the below links for more details.