Enable/Disable Kudos for a post

Hi Dev Gurus,

I have a requirement to customize the default post message form. I am able to change the submit option from its default behaviour. Now I am able to save the message and some custom metadata through separate REST API call bypassing the form submission. 

But there are 2 other check boxes that appear in the post message page -

1. Don't allow XP for this post

2. Subscribe to replies

I didn't find any REST API to enable/disable these 2 values for a post. Is there any way to set this flag either through an API or Freemarker object or some other way?

Thanks,

Venkat

Thanks,

Venkat